I do not play 3D games, but I do use the Internet. My surfing experience with my brand new dual-core desktop Gateway 2 GB RAm Vista is much slower than with my old laptop Celeron Gateway 1 Gm Ram XP. When I put the two computers next to each other, open IE or Mozilla, and depending on page (mostly email or newspapers) Vista would be at least 4-6 seconds slower than XP. (For me, that's a fact). I prefer XP.
Man Rui