MHO a linux compute farm of blade or rack servers is better than any Mac or PC and a Petaflop super computer beats them all. So what is the point here. There is nothing wrong with either the Mac or the PC, they are what they are, just as there is nothing wrong with the PS3, Xbox360 or a $300 EEEpc. People buy Macs for different reasons than people buy PCs just as people have different reasons for buying a $5000 workstation or a $100,000 compute cluster. I thought the point of this thread was recommending a computer for serious video/audio encoding. For this a dual processor machine is better and the $3299 MacPro is a very good choice.