HOLD EVERYTHING!!!!! First off watercooling IS NOT your answer, the Zalman CNPS-9500Cu is. For about $60 you can get a cooler that will do the job just as well as most watercooling setups. Mine runs my pressy at 38C ~ 58C load, which for a pressy is impressive with my overclock. Also 60C for a processer isn't hot, thats about an average load temp under a stock cooler.
Again watercooling IS NOT your answer. Reason being is that a watercooled SLi rig useing DangerDen TDX blocks, with one of the new radiators, and one of their new pumps will cost you well over $450, and will only previde better results than the Zalman because you have the ability to pump sub zero water through your rig.
Seriously though, a CNPS-9500 or 9700 is the way to go. Again to proove my point, Maximum PC did an article on overclocking the Core 2 Duo X6800. They found that under a CNPS-9500Cu that it idled around 20C and got about 38C at load. Hell they couldn't get it to break 45C EVEN WITH TURNING OFF THE FAN!!!! Seriously a Zalman and some Artic Silver 5 are the way to go.
Zalman CNPS-9500CuLEDArtic Silver 5Serously, hook that up and you will be good.
Cheers
Cameron