Hey all.. Just bought a 2009 Mac Pro 8 core (2x2.26 Quad Nehalem) machine and I want to upgrade the CPU. I'm looking for info online, or from someone who has done this. I've got a computer tech mate who will do the job, I just need to know what chips I can get for it, and what's the best way to go. (ie: how to avoid breaking things!) Then I'll add memory, drives, and possibly update the graphics card. Anyone done this?