I have:
8400 (overclocked to 4gig on air)
4 gig of ddr 2
4850 1 gig (i would get a 4890 if building now)
asus p5q-se (i would get a motherboard with sli/x-fire capabilities)
22" lcd
1tb hard drive
This is enough to run crysis on 1920 X 1080 with everything high with no slowdowns.
I would look @ getting a intel/amd quadcore, however i don't know if you would need ddr 3 as yet.
You could also wait until dx11 cards come out.







