PC, since i'm a performance enthuastic. Not to mention i'm going to need access to VoIP, excel spreadsheets and a few possible convenience plugins. Already built my current setup pre-1.0. Later i added watercooling, so i could really crank up the overclocks.

Upcoming benchmark release and performance comparisons between other users will decide, if i'll upgrade my PSU, and push my comp's current limits for even greater overclocks.