I'm gonna build a gaming PC and I've already decided on buying a 4 GB DDR2 RAM a 22-24" LCD monitor an XFX PCI-e card and a Intel C2Q. I can't decide on whether to buy a 2.83 or 3.00 Ghz C2Q and whether to buy a 260 GTX or 275 GTX. There's a big price difference between them so which should I get considering that I want toplay hardcore games like fallout 3, gta IV and want to continue playing games with this PC for at least the next 4-5 years. I don't wanna buy an i7 because I think it sux. The C2Q series is way better... Any way what should I get and also what motherboard should I get for the XFX GTX card I was thinking I would get an Intel DG45ID. Will the GTX support it? Will it be able to use SLI? How much should my power supply be? (please answer these question accurately but descriptively)