I have been on the heels of purchasing a new mac for quite some time now, and with the seemingly imminent launch of the new 6 core mac pro I am trying to hammer out a final decision. My main need is a machine that will perform very well with FCS. The debate for me boils down to the 27" core i7 imac vs one of these new mac pros about to launch. I understand that we do not know the exact hardware specs of the new machines, but I am hoping to get some advice on this decision all the same if possible. So, what would most suggest regarding the biggest differences in performance between a mac pro and an i7 imac? Can FCS make use off all the current cores / threads in its current carnation, or is it only the final render that can use all cores through compressor? Would my performance on the imac be notably slower or sluggish by comparison? Would a single fw800 port be sufficient for my storage, as obviously the imac completely lacks internal expandable storage. What would really help the most would be thoughts from FCS users that have worked on both the new i7 iMac and mac pros as to their insight on what things are noticeably different when working on the two. Thanks for any help and advice.