Hi I am interested in the following Mac Pro from a friend of mine. I use my current Mac for the usual stuff nothing to heavy as well as using windows via Parallels for my stock trading. I really like the idea of the mac Pro because i am able to upgrade the configuaration and i like the ability to have 4 internal hard drives for back up etc etc. So the machine i have been offered is this. Its a Mac Pro Xeon 64 Bit Workstation. Mac Pro 2.8 GHZ QD 2GB 320 HD with ATI 2600 Its the MA97OLL/A model. Is that a dual quad core or a single quad? Any thoughts on that model? Also it is approx 1 year old but has 2 years left on Applecare. What would be a fair price? Really appreciate it.