If you're regularly watching your portfolio but not paying attention to your credit status, you might be in for a rude awakening that could turn into a nightmare. Which is why personal finance columnist

Dagen McDowell's

three-part series on proper credit is a must read. It explains how to get your

credit report, how to

evaluate it, and what to do if the

report is wrong.

Key stocks: JDS Uniphase's

(JDSU)

whopping $41 billion purchase of rival

fiber-optic player

SDL

(SDLI)

got the market off to a mixed start.

And as we told you last week, indications are growing that the

Federal Reserve

might keep its hands off

interest rates again next month. Meanwhile, earnings season moves into high gear this week, and we'll be previewing

some of players whose reports will have the most impact, starting today with

Yahoo!

(YHOO)

What you might have missed:

Eric Ritter, whose

(DRAPX)

Driehaus Asia Pacific Growth fund had huge returns last year, tells what he likes now in our

10 questions feature. And whoever said opposites attract didn't have Robert Markman and Harold Evensky in mind. These two heavyweights of the financial-advice business disagree about almost everything in their profession. Read their

debate on how to allocate your assets.

What you don't want to miss:

We'll have earnings previews on

IBM

(IBM) - Get Report

and the consumer-products sector tomorrow. Later in the week: the wireless, optical and biotech players.

Today's link:

If the

shoe fits ...

Jonathan Krim is executive editor of TheStreet.com. In keeping with TSC's editorial policy, he doesn't own or short individual stocks, though he owns stock in TheStreet.com. He also doesn't invest in hedge funds or other private investment partnerships. He welcomes your feedback at

jkrim@thestreet.com.