From personal experience, the Globalwin FOP32-1 has been a nightmare for me. First, the clip broke, because it was SO TIGHT in the first place. Its hard to put the fan on. The clip is pretty cheap, because its not one piece, theres a detachable piece on the end, so when its so tight, the piece comes off. Second, I got a new clip for it, and for some reason my computer wouldn't even POST when the HSF is used. Wierd I know. So now, I'm still using my Retail HSF that came with the Duron, and surprisingly, its working great. I'm running my 600mhz duron at 8 x 113. And its rock steady, rocketly fast!
Heifetz