Just in case anybody out there is as clueless as I am, here's something I just found today.
I use my wife's WinXP box for IE testing when designing site's. So the old workflow was make a change, roll over to her comp and hit f5. Well I just found out that MS makes a remote desktop client for the mac. Now I just remote into her machine. So now when I need to test the page, I just command-tab to remote desktop and click refresh. So if you already own an XP box, it's much cheaper than buying VPC.
Well, I thought it was pretty cool anyway.