I game alot with a p4 2.8 with a geforce 6800 and my psu is ONLY 250w so he should be fine. And plus I dont think he is going to do that much gaming with a integraded VGA.
really...i know that but look at some mobos they have pci slots or pcie (x1 or x4) slots betweeen the two pcie x16 slots. Will the sli connector reach that far?