You know, people seem to have really short memories. It wasnt that long ago that the Athlon was the stupidly hot chip which needed excessive cooling solutions. Its only the Prescott and Preslet generation of Intel CPUs that run excessively hot. Willamette and Northwoods ran at similar temperatures to the equivilent Athlons, PIIIs ran considerably cooler.
Bare in mind as well, the next gen Intel CPU is Conroe which is going to be very similar to the current generation Core CPUs. I think its a safe bet that they will run considerably cooler than the equivilent Athlon 64.
yeah, hwever it was a fairly limited number of the HighEnd Athlon range before the XP arrived that ran way overheat. before that the K6-2 didnt even need an active heatsink :\
Intel kept with their overheating, overclocked wannabe monster chips for 5/6 years and just kept ramping up the MHz and making them hotter!