I was going to build a new system pretty soon, and was wondering which would perform better in the long run, and has best bang for the buck. Isn't it right that in crossfire you don't have to have the same card? so if a better card came along you could just pop it in with your old one and be good to go on the next gen? correct me if i'm wrong. but I've also heard CF dosn't work as good as SLI performance wise. Let me know your opinions.