S_Klass, that's the gist of it, but not NECESSARILY all there is to it... Individual heatsink materials/design have a lot to do with its cooling ability. If anybody has built their own, I'd be interested to see how it performs. Btw, I'm not trying to imply that it wouldn't work, or even work well. But aiflow patterns, materials, etc, can make a big difference.
[This message has been edited by schism (edited 03-08-2001).]