Since you have a SLI motherboard then I would suggest a 8800 GT. A single 8800 GT is better than two 8600GTs in SLI. You can also add another one in SLI down the road if you need more performance.
Wolfshadw does your pc run crysis all the way up? I'm starting to push towards the idea of one 8800 card. but where can u get cheap? I know my cpu is crap looking to buy new one soon. I have another computer which is a AMD Athlon X2 3800 or 4000 I forgot but the gameplay on crysis is crap. It has the same card also and 2 gigs of ram.
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