The

RealMoney

contributors are in the business of trading and investing all day on the basis of ongoing news flow. Below, we offer the top five ideas that

RealMoney

contributors posted today and how they played those ideas.

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brings you the news all day, and with

RealMoney

's "Columnist Conversation," you can see how the pros are playing it on a real-time basis. Here are the top five ideas from today:

1.

More on ISRG

By Jon "DRJ" Najarian

3:11 p.m. EST

Intuitive Surgical

(ISRG) - Get Report

has rallied more than $10 in the last three sessions since

we cited unusual buying of stock and options in the company.

The sharp rise has taken place amid persistent takeover rumors involving

Johnson & Johnson

(JNJ) - Get Report

and the robotic surgery giant, which last month reported fourth-quarter results that were squeezed by strained hospital budgets. A number of hedge funds have passed along the JNJ-for-ISRG buyout talk again today, but such rumor-driven rallies can end as abruptly as they start.

Just over a week ago, we cited the options activity in Intuitive Surgical after shares hit their lowest level since October 2005, trading to $87.14, but then investors seemed to recover their mojo and focused on the fact that even in such difficult times, Intuitive Surgical's net income grew 3.3%. Its shares are up another 5% in midday trading to about $108, but they were above $300 as recently as August.

2.

Waiting for a Ramp

Doug Kass

2:18 p.m. EST

Stocks had every reason to fold up like a cheap suit today, but they haven't done so yet.

As I mentioned, individual names including

Medco Health

(MHS)

and

Microsoft

(MSFT) - Get Report

look like they have turned.

It seems that amid a lot of skepticism and gloomy earnings reports, a nice ramp is imminent.

I added to my long rentals today; see you tomorrow!

3.

OSI Spikes

Gary Morrow

11:58 a.m. EST

OSI Pharmaceuticals

( OSIP) is up over 15% after the company released

positive news on its cancer drug, Tarceva.

The stock began the day with a huge gap higher open that lifted it above its 200-day moving average. OSI is now at it best level since its huge breakdown in early October. Volume on today's breakout is running extremely heavy and is already triple the stock's daily average.

While this is a very positive development for OSI, today's surge is a bit overdone and will likely lead to some range-bound trading in the short term as the stock consolidates these gains. The stock will be running into some considerable overhead supply once it passes through the $45.00 area. This is the level is where the stock broke down last fall, beginning with a one-day 14% collapse.

Prior to a test of this level, I expect OSI to find support between $40.00 and $41.00. This will allow the stock to build a solid base and maintain the bulk of today's powerful gains.

I believe that the stock can rally another 10% from this area, which would take it up to just shy of $46.00 and fill the breakdown gap left after the Oct. 3 close.

4.

Apparently Buffett reads RealMoney

Bob Faulkner

10:57 a.m. EST

Recently I suggested that

Harley Davidson

(HOG) - Get Report

was the type of deep moat company that might attract the Sage Of Omaha. This morning I see he has extended a $300 million loan to the company.

Davis Advisors

took an additional $300 million of the bonds maturing in 2014.

Pretty sweet terms as well. The notes carry a 15% interest rate. The money is being used to provide funding for the financing unit.

If the cost of funds in 15%, what rate are they planning to charge on those new bike loans?

5.

Denny's Grand Slam Day

Scott Rothbort

7:45 a.m. EST

Denny's

(DENN) - Get Report

(DENN) is offering free "Grand Slam" breakfasts from 6 a.m. to 2 p.m. today. This is part of a costly Super Bowl marketing campaign.

In January Denny's announced that the company would meet or beat its prior 2008 forecasts. It could very well be benefiting from the trend to lower-priced restaurants. The company is expected to earn 25 cents last year and 34 cents this year. If that is true then Denny's could be a great comeback story.

Just like

Benihana

( BNHNA), which I discussed last week, Denny's could be a recession survivor and we could see shares rise in the next year or so. At under $2, it might be worth adding to one's menu. Before doing so I will have to do more work on the name.

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This article was written by a staff member of RealMoney.com.