"For those of you waiting to get carpel-tunnel syndrome because you've been playing video games for three days straight, you're going to have to wait a bit longer," Jim Cramer told his "RealMoney" radio show listeners Wednesday, because Sony ( SNE - Get Report) has postponed the release of its PlayStation 3.

"There's going to be money made, but it's not going to be made for Sony," Cramer said. If the company misses the Christmas selling season, customers will switch to Microsoft's ( MSFT - Get Report) Xbox.

Cramer owns Microsoft for his ActionAlerts PLUS charitable trust.

The game console is enough reason to buy the stock because the chunk of money that goes to video games is one of the largest discretionary pools of money out there, he said. If this money goes to Microsoft, you've got a terrific reason to buy because the annuity stream is gigantic.

Plus, Microsoft is unrolling a new operating system for the first time in years, and most everyone will have to upgrade, he said.

The stock is the cheapest it has ever been and has done nothing for six years, leading Cramer to say that this is an opportunity to buy.

Cramer always says to do your homework -- an hour per week per stock -- but told listeners that they should be careful about how they interpret the news stories about certain companies.

For example, he said, news about Google ( GOOG - Get Report) might be pushing people out of the stock unnecessarily.

The company has been in the news pretty much every day, he said, reminding listeners of the latest in the string of stories: The Justice Department is trying to get the company to turn over user information in its crackdown on child pornography.

"This is one of those lawsuits that will not amount to a hill of beans for people who own Google," Cramer said. But people are panicking and leaving the stock because they believe any suit is bad.

The lawsuit against H&R Block ( HRB - Get Report) that has hit during tax time is something that will have an impact, he said. "But a Justice Department suit against Google will not impact what you and I trade off of, which is future earnings."

All Wall Street cares about is seeing a company make more money in the future and rake in bigger profits, Cramer said. And we gauge whether profits are to our satisfaction based on whether a company can meet the earnings estimates that major brokerage houses put out based on how well they think a company can do.

We don't care about where a stock has been, we only care about where it is going, he said. And if it meets and beats the estimates, that's one reason to buy a stock.

Foreign Affairs

Cramer said the U.S. economy was once the only economy that mattered, but that is now no longer the case.

The U.S. economy and the U.S. stock market need more than ever, and are even more dependent upon, foreign investment, he said, "whether we like it or not."

Remember the uproar over the Dubai Ports deal, he asked? Now, U.S. lawmakers are rethinking the openness of our economy, he said, with one California lawmaker drafting legislation that would require foreign companies to sell within five years anything they own that is considered critical to the country's economic or physical security.

"This is the kind of stuff that over a longer time will make it tougher to make money in the market," said Cramer.

In 1994, 56% of Americans backed economic globalization, and that number dropped to 48% in 2005, he said, adding that France, Spain and Poland are also blocking foreign companies from buying interests in their national companies.

"This is all wrong, ladies and gentlemen ... from the perspective of whether we expect to make money longer term," he said. "We need free flows of capital everywhere."

"We don't want to close our doors to inflows of capital that could move the stock market," he said, adding that since the Dubai Ports deal was scuttled he has been concerned that big pools of capital in the Middle East won't come to us.

Find the Money

In the "Find the Money" segment, Cramer told listeners that their office spaces were places full of moneymaking ideas.

First, you'll see office furniture, and there are two major companies that make and sell that furniture, he said, Steelcase ( SCS - Get Report) and Herman Miller ( MLHR - Get Report).

Steelcase has been a serial underperformer since it came public about 10 years ago, he said, noting that he took a loss after the stock had an earnings shortfall and has been wary of it ever since.

But Herman Miller has consistently delivered on earnings, and is a way to make money by looking at your office space, he said.

For office supplies, Cramer said that Office Depot ( ODP - Get Report) is OK, but that Staples ( SPLS) is the best-of-breed play.

And even though Cramer believes that Dell ( DELL) once represented the best in American manufacturing, he said that Hewlett-Packard ( HPQ - Get Report) is now the best computer maker around.

New Chief Executive Mark Hurd said that H-P would no longer be No. 2, Cramer said, adding that Hurd vowed to make better computers, make them more cheaply than the competition and bundle them with printers.

No one believed him, he said, but the stock was at $22 when he came in and is now in the low $30s. H-P is the dominant company, but most people are still thinking Dell, he said. "Talk about an opportunity."

A theme that Cramer said he will return to often is the baby boomers, specifically their idiosyncrasies and what they buy as a group.

And looking younger is a baby boomer obsession, he said. "What they're most vain about is their skin; they want to look young."

That's why he said to take a look at Medicis Pharmaceutical ( MRX), which just bought the rights to something that Cramer called "the most important wrinkle removal" treatment since Allergan's ( AGN - Get Report) Botox.

Allergan doubled after it got approval to market Botox, he said. So even though Medicis is up two and a half points from where it was when it announced its acquisition, Cramer believes that there's room for it to go higher from its level near $32 on Wednesday afternoon.

A Taxing Decision

Cramer said that even though Jackson Hewitt Tax Services ( JTX) was being taken lower by Eliot Spitzer's lawsuit against H&R Block, he thinks the case should eventually benefit Jackson Hewitt.

Jackson Hewitt is not a well-run company, and it's a spinoff of another not-well-run company, Cendant ( CD), he told a caller. But tax time is here, and he believes that few people will want to let a company with H&R's legal problems take care of their taxes.

He told another caller that Sirius ( SIRI - Get Report) "lacks a catalyst," so there is "nothing the company can say or do in the next two weeks, or maybe even two months" that will get the stock moving.

Cramer said that he believes the stock will eventually gain, but that right now it's "dead money," meaning that it's not doing anything for you.

If you only care about what it does over the next month, Cramer said to move on and find a stock that will make some money. But if you're interested in Sirius over the next 18 months, then he said there will be many data points that could provide reasons to own the stock.

A caller wanted to know if he should hold on to Finisar ( FNSR), a company that makes fiber optic subsystems.

Phone companies like Verizon ( VZ - Get Report) and AT&T ( T - Get Report) want to compete with cable companies to bring customers Internet and video, Cramer said. They want to take a wire right to your house that carries those signals, and it's a wire made of glass, he said, but their existing wires are copper.

Finisar is part of the weapon system that these phone companies need make this rollout happen, he said. Even though Finisar has moved dramatically over the past year, up 140%, he believes the company will digest this big move and then go substantially higher until 18 months from now when the build-out is more complete.

Cramer has said that he is willing to pay twice earnings growth for a "legit" company, and on Wednesday he told listeners how he figures out what the growth rate is.

He said to plug the stock symbol into sites like Yahoo! Finance, TheStreet.com or The Wall Street Journal online edition, and grab the current and estimated earnings for the company.

Based on these numbers, it is possible to see how fast the company is projected to grow, he said. And if the company is growing at 20%, he would be willing to pay 40 times the projected earnings.

Want more Cramer? Check out Jim's rules and commandments for investing from his latest book by clicking here.

At the time of publication, Cramer was long Microsoft.

James J. Cramer is a director and co-founder of TheStreet.com. He contributes daily market commentary for TheStreet.com's sites and serves as an adviser to the company's CEO. Outside contributing columnists for TheStreet.com and RealMoney.com, including Cramer, may, from time to time, write about stocks in which they have a position. In such cases, appropriate disclosure is made. To see his personal portfolio and find out what trades Cramer will make before he makes them, sign up for Action Alerts PLUS. While he cannot provide personalized investment advice or recommendations, he invites you to send comments on his column by clicking here. Listen to Cramer's RealMoney Radio show on your computer; just click here. Watch Cramer on "Mad Money" at 6 p.m. ET weeknights on CNBC. Click here to order Cramer's latest book, "Real Money: Sane Investing in an Insane World," click here to get his second book, "You Got Screwed!" and click here to order Cramer's autobiography, "Confessions of a Street Addict."