I'll be getting a Mac Pro, and probably go for the 3.0 GHz. A couple of quick questions: -There's a wikipedia page of tech specs for the Harpertown chips http://en.wikipedia.org/wiki/Xeon#5400-series_Harpertown_and_5200-series_Wolfdale which shows that the 2.8 and 3.0 chips run at 80 watts, but while the 3.2 runs a TDP (thermal design power) of 120 watts. If I put a premium on running cool and quiet, is it correct to think that's good reason to choose the 3.0 over the 3.2 (I'm aware I'd lose about 7% in speed)? -Were some of the G5's water cooled? I remember seeing one of the mac tower's tech specs, and seeing water cooling, and being grateful the design had evolved to that efficient and quiet place. My old G4 sounds like a 767, and I'm worried my new Mac Pro will get there too, once it fills with dust. I can't see anything about the new one's being water cooled. Am I wrong? -I'm assuming one simply tries to reduce dust (I'll be keeping it off the ground at desk height, but don't know what else I can do) and blow it out with compressed air now and again to keep it cool and quiet. Any other tips would be welcome. -I seem to remember a suggestion, don't know from where, about putting some lube into the (noisy) fan. One noisy fan really could drive me up the wall, and if a judicious drop of silicone in the right place could fix this, I'd love more info. Is this a practical solution?