Don't upgrade.
It's really a piece of shit.
The best version, Ultimate, is around 400 bucks. Many of you may not have a kick ass computer, so you'll be FORCED to upgrade if you want to keep up with the times.
Read: upgrade or buy a new system.
You guys should really check out a Mac mini. Cheap as hell (starting at 600), fast, and generally a better experience.
Microsoft agrees with me when I say OS X is the best. The sincerest form of flattery is imitation. MS even copied the fucking wallpapers of Tiger.
Vista:
http://img408.imageshack.us/my.php?image=w215ti.jpg
Mac OS X:
http://img518.imageshack.us/my.php?image=stonesuk3.jpg
I'm just saying: Don't let a corporation force you to upgrade and live with hell. For 200 more, get a system and enjoyable experience that will last.