I work in After Effects for work almost everyday. (Just upgraded to CS6!) We do a lot of illustration in Illustrator and animation in AE. Currently I am working on a mid-2011 27" iMac 3.1Ghz (I think...) i7 processor. Standard graphics card that came with it. Upgraded to 16gb of RAM. This setup handles my After Effects work just fine and renders out scenes without frustration. It takes about 3-4 minutes to render out a 90 second composition. I do know that these graphics cards that the iMacs use are not compatible with the Mercury engine that supposedly speeds up AE like a charm, by sending processes to the GPU instead of the CPU. So, my main question is -- Should I be considering a Mac Pro for my next rig? The processors are more powerful, but more importantly (i think...) would be the better graphics card that can handle the Mercury engine. Would the base Mac Pro be better than a super up iMac for my purposes? Or would I need to upgrade to an 8-core machine? We all know that Apple may be unveiling some new computers here in a couple weeks with the new Intel processors, so keep that in mind with any recommendations you guys have for me... Thanks for any input!