well if you want the absolute best HEATSINK....mind you it doesn't come with a fan but put a tornado on it (might want a fan controller though) and you got some NICE air cooling, probably better than the tornado. The SLK-900A is supposed to be the most optimum heatsink on the market. Can handle 80 and 92mm fans that are either x25 or x38mm the (80x32 are high performance fans like the tornado as with 92x38 obviously)
Mind you they aren't building a heatsink AND fan...they are out to build THE BEST heatsink....period....but its also $35
Mine will be arriving tuesday and I'm gonna lap that slut with a mirror finish and I'm doing a whole lot of crazy crap to my computer. My 'mod' coming up....damn svc delayed my order though!