2 X GTX285 running in SLi, I was going to upgrade to a GTX580 purely for DX11 support, but due to the fact there is no DX11 in COD im not going to bother because 2 X 285's run slightly faster than a GTX580. Im sure by the time they patch COD to run in DX11 assuming that they do there will be at least 2 more significant GPU releases either from ATI or Nvidia which will see the price of GTX580's tumble.