Hey guys I am running a 6950 at 900/1300 1536 shaders. I was wondering if a 5850 crossfire setup would perform better than this and whether I should take the leap. I can get 2x 5850 from a friend for 280~ dollars and sell this one for about 260~ dollars so it would be a 20$ loss on my part. What do you guys think I should do? Rest of the system in the sig. I was considering SLI but my motherboard doesn't support SLI. Thanks in advance.