Hey all I'm considering buying this Mac Pro. Claims to be barely used. Here are the specs: Quad Core 2.66GHz 4GB RAM 500GB Hard Drive DVD-RW/DL Snow leopard 10.6 He says the model #is MA356 but the notable differences between the one he is selling and the base unit are: It has 4GB Ram, 500GB Hard Drive and comes with the 2.66 quad-core 'clovertown' processor (not the 2.66 core 2 duo) I'm not sure what the clovertown processor is, so any insight would be great. He says that he can swap in a 1TB drive instead for an extra $100. He's asking $1200. I am currently borrowing a friends Mac Pro and in the 'about this mac' it says it is a Quad-Core Intel Xeon, 2.66ghz. Am I currently using a Core 2 duo or am I essentially using the same computer that this guy is selling? I just want to make sure I buy something that is at least the same or better than what I am currently borrowing. Any insight on any of this would be much appreciated and the sooner the better! Thanks all!