How do you define "running cool"? And compared to what? Northwood @ 3GHz? How cool will that run?
Cool as in not a space heater..., I think the fact that processors are running as hot as they are now is dissapointing. It's pretty much impossible to have a high performance system run as silent as, say, a celeron 566 system would, wich is practicly in-audible. Even video card coolers are getting noisy.