<< Why are you even considering those heatsinks?
The HHC-001 sounds like a 747. And the volcano 7+ is outrageously overpriced for its performance. You should be looking at the $29 Alpha PAL8045, $29 Thermalright AX-7, or the Swiftech MCX-462A. These heatsinks are in an entirely different league. They are just about the only heatsinks on the market that will cool an Athlon XP 2000+ (and of course, a 1800+) with a low noise to silent fan like the 21dB Panaflo L1A. With a high noise fan, like you get with the HHC-001, they also provide the best overclocking potential >>
KenAF - I don't understand either how so many people can stand these intrusively loud HSF's... My roommate got an Athlon XP a couple of months ago, and the 7k rpm delta fan on there drove us both nuts. He returned the computer to the store a month or so later and got a new, much quieter HSF, thank god.