Im wondering whats more important to get next. right now i have Windows vista ultimate 32bit OEM version. 4gigs system ram, 3870x2 in crossfire with 3870 OC version. but system only see total ram plus video ram as 3.5-3.7 i know to get 64 bit vista i need to purchase the full version (270$ or so) but also had my eye on the Q9650 processor, 3.0ghz etc quad core 500$, either those two or a 4870x2... basically i don't know right now whats the priority. I heard Crossfire, and ATI modded drivers (or the way they have them done now) are better with the 64 bit platform. if so how much better? and what should i do? video card, cpu, OS?