This is not intended to be a one versus the other post but if I have, kindly forgive and remove. I pretty much play Mass Effect series @ 1920 x 1080 res but I like oodles of AA, AF and the smoothest gaming experience. Also, DX11 tesselation seems to be important these days. Which of the following set ups would you choose and why? - SLI with 460GTX 1GB - Crossfire HD5770 1GB ?