I have decided to replace my MBP 2,2 and get a desktop... I am 90% in the iMac Camp, but really like the idea of 12 TB of internal storeage, along with tinkering around inside a Mac Pro. Any how If I were to get a new iMac from the current lineup my only question is about the 27" iMac's GPU's. I have been looking all over to find out if the 2GB version of the 6970M is worth the upgrade from the 1GB version? BareFeats compared the i7 w/2G to an i5 with 1Gb and it was faster, but that is not comparing apples to apples...