Hello. I have XP Pro 32 bit right now and i am usually just playing games on this rig and XP runs just fine here. But i was wondering should i upgrade to windows vista 64 bit? i've never tried 64 bit before but i heard it's better than 32, and i've never tried windows vista so it will be a whole new experience for me. So which one is preferred for gaming? Thanks a lot for your answers!