I'm starting a program in animation, graphic and game design, and I need to buy a Mac Pro (my new MacBook can't handle the work and my MacBook pro is too old). I also do a lot of video editing with FC Pro. Would there be a significant advantage to getting the 8-core Pro at 2.26 GHz over the 4-core at 2.93Gz, assuming everything else is the same (12 GB memory, same vid card, etc)? I can't really afford shell out 5 grand for an 8-core 2.93 GHz.... Thanks for your advice and wisdom!