here Jace if you want to give Vista a shot again here is some shit at neowin the community has come up with to fix the performance of 64bit version.
http://www.neowin.net/index.php?act=view&id=41691
Only complaint i have with vista is when you first install it you gotta configure so much shit to stop it from being a over protecting noob computer..
i can see the noob proof features being good on a parents computer or something but other than that they are annoying.