What sort of fan do you have on yours, Packman? Are you sure its working correctly? I've never had a problem with any AMD processor, and on my system, a 1.33 overclocked to 1.4, i just have a modern AMD approved basic fan.
On a normal, not overclocked processor a decent fan with at least one case exhaust fan (besides the power supply fan) should be enough. I haven't had to open it in ages, but I believe i put in an additional case fan and one of those oldskool little processor fans (about 1.5x1.5 inches) blowing at my harddrives and ive never had a problem.
then again, there's always a bad apple in any bunch.