I have a friend who has a custom PC (C2D, 2.93 GHz, GTS250)and a MacBook, Black, 2.2GHz. He asked me if it would be a good idea if he sold and replaced both with an iMac, 2.4GHz, equipped with the Radeon HD2600. (Are these GPUs in the iMac Mobility versions, or desktop versions, and any way to o/c them?) The other Mac that he wants in addition to the iMac is a 17" MBP, Mid 2007 model, the same age as his MB. The reason he wants this type of setup is that he wants a faster portable Mac, and he does not want to game as much, thus the lack of need to keep his custom PC, but still a need for a desktop. Any suggestions? His money limit is whatever he can get for his current computers, which he believes is $1,000 for the PC, and $800 for the MB. He also does not want to get a new iMac, Mac Mini, or a new Core i-series MBP, because he would not be able to still have two computers, one a desktop, the other a laptop, and he must stay with Macs.