So nearly 2 years ago i tried win xp 64bit i asume that programs/games are more compatible now? back then i ran into alot of compatibility issues and decided to go back to 32bit.

Whot issue's would i run into now if i was to install win vista 64bit?

-Will all my games still work? eg Crysis, F.E.A.R. 2, Dead Space?
-Whot programs are fully 64bit ?
-Drivers,. are all drivers updated?
-Codecs i guess all codecs should work on 64bit now,.>!?

whot i want to know is,.. is there still a big difference between 32bit & 64bit>!?

Considering installing vista 64bit,. since 64bit is twice faster then 32bit,..

Don't hear/see alot of news about the "64bit" scene.