I'm currently in the process of building a new computer to replace my old onethat has a fried motherboard... I was thinking of building a fairly decent computer as I like to play games ever now and then. I bought a new motherboard and it doesn't support SLI AFAIK, but only ATI Crossfire. The question is, what will give me maximum performance? Two ATI cards which I then Crossfire, or one badass nVidia card?