that would be sweet. im currently looking to upgrade my rig to that exact DFI board, and an xfx gts g92. SLI with those gt's would be insane though. pull some pretty good marks i would say.
you should get him that 750i (personally I don't care for nVidia Boards, but you did say he wanted SLI Ready board) Board with a e2200, because if he's going to upgrade soon no point in blowing cash on the higher end e6750