Hello! I am currently building a system for a friend (or rather helping him choose the parts) and I am in need of advice on which motherboard to get. It needs to be under $200 (preferably under $180), needs to have good overclocking capability, support SLI, have passive cooling, and be a generally high-end board. Any advice? He is getting a C2D E6700 as the CPU, know of and board that any board that maximizes that CPU? Thanks!