Howdy, I've decided to upgrade recently and the CPU I'm going for is an Athlon 64 x2 3800+. I'm just not sure what motherboard to go with. I've noticed that most s939 boards have nVidia nForce / SLi etc onboard. I'm not exactly sure what this means - is it just support for dual video cards, or...? I was thinking of buying an ATi card, and I've got no plans for dual cards, but will running an ATi card on an nForce supported board have any impact at all? Would I get more benefit by getting an nVidia card? Would love to hear any opinions you may have. Thanks!