HOLY CRAP!!! I just wanted to raise a :beer: to this HSF, but didn't want to waste a new thread. I shaved 5 degrees off my load temp, and cut the noise by 70%. The loudest thing in my room now is my old PC's PIII-CPU fan! I can't believe this thing is so darn quiet, and still took some real temp of my CPU. Peak performance is at 200 hours, so I might even pick up a degree or two between now and then. Sweet. My A64 3000+ Newcastle is thanking me....
Amazing thing is that I had to mount it with the fan facing up, not back towards the exhaust. I can only imagine what this thing would do if it was in a different MOBO with a better orientation...