Re: 6800GT sli?
I mean if you just want to have the fastest PC NOW, adding an extra 6800GT is the best choice based on your budget.
If you want to upgrade your PC in the future, buy a single 7800GT!
But ... in future, you may want to buy next generation GPU instead of adding extra 7800GT, correct? That is what you are thinking now, correct? get rid of 680GT and buy 7800GT .... That means buying 7800GT will cost your more money since you will get rid of it in the future. Psychological thinking process of human being ..... You always want to get the great and latest stuff ....