If you've got Windows Vista & you have Aero turned on, you really ought to get this utility. It's free and it's a helluva little app for Vista that frankly does a better job of the the MacOS's Expose function.
I am a current IT Professional with almost 10 years of PC support experience. This experience includes troubleshooting PC software & hardware and consulting on PC upgrades & recommendations. I am also an HP Desktop Certified Professional and currently studying Information Security.