You'll like the Zalman HSF. I just got one a month ago when I upgraded to an XP3200 and it is fantastic. My cpu runs idle at about 34C/93F. Not too bad for the fan running at 2200 RPM. The fan is a monster though. And heavy! Be prepared to pull your motherboard to install it on an AMD system. I did fry an Athlon 1300 about 2 years ago, and if I remember right it would still post, but then right after it would puke. Of course YMMV.