Putting aside the argument for skipping Microsoft products all together and going with Ubuntu (Linux), I offer up a few caveats for going with Windows 7.

1. With any new Operating System (OS) you should wait until the first service pack is released. A service pack is a collection of bug fixes, security patches and feature enhancements that ultimately improve the OS product. While this is the best advice we can give this approach may not always be practical for many reasons; perhaps your PC or laptop is dead or stolen, or your Windows 98 system takes forever to render Facebook. Hopefully you’re not running Windows 98. In that case, upgrade your computer please because your PC is probably a zombie on a bot-network, controlled by a Cobra Commander wannabe.
   
2. There may be compatibility issues with your current software. On the side of every off-the-shelf software box you will find system requirements. Since Windows 7 is so new odds are the box does not have the latest info. Your best bet is to go to the software manufacturer’s website and check for compatibility — if you’re lucky they will have an update for download.
3. Continued support for a business empire that crested in the 90′s. The status quo is not always the best route to take, but if you’re the type that “goes with what you know” then perhaps Microsoft is your life-long partner in computing. For business computing I just cannot see Mac gaining market share in this area, especially for computers that can start at $2,000. For personal computing outside of Microsoft, Mac has seen a resurgence in this decade which many wrote off as improbable when they were having problems — hooray Steve Jobs! So it would be foolish to write off Microsoft. They’ve stumbled, no doubt, but they’re not out. And of course there’s Ubuntu, the free OS that runs on nearly any computer platform that Windows can run. Did I mention it was free?

So there you have it. Windows 7? Sure, but you would need to keep in mind the above points before making the investment.