I am looking to move my current wc setup to a seperate pc when I get back to the states and just cool my 7900gtxs and my chipset with water. As the cpu will be under phase. I am getting two nv-78s and the chipset block from Fragtek. I am looking at getting a D5 pump but wondering what people think about radiators. Would a HE 120.2 be enough or should I go with the 120.3? Or do you have any other suggestions?