I'm planning on purchasing an iMac in the next weeks and I'm having a hard time deciding which one to get. Here are my two choices: (27 inch) 3.06 C2D Base Model + 8gb Ram (Upgrade) + Free Printer 2.66 Quad Core Base Model (No Upgrades) I currently use my macbook for designing purposes and sometimes video editings through Final Cut Express/iMovie. I'm 15 years old, and have a budget in purchasing this iMac. The problem that concerns me is will having an 8gb upgrade make a difference or will I rather go with a Quad Core along with 512mb graphics card? Thanks. Feel free to give suggestions also.