Hi, I am a Graphic Designer looking for a new machine. I'm getting ready to buy one of the new iMac's. Upgrading from an 07' Macbook Pro. For the most part I am largely a print designer but have aspirations to exploring other options such as video and 3D. Current softwares used are: Adobe Creative Suite 4/5. Final Cut Pro. And starting to play with Cinema 4D and After Effects. The question I am posing is whether I should get the i5 3.6 duo or the i7 2.93 quad? What would be better in the long run for my investment? Would I be better off going with 4 cores for heavy processing, or 2 cores running at a bit faster clock speed? Thanks.