Okay so I'll make this thread nice and short. I am a doing music recording as a hobby at the moment and am in need of a faster mac. I run logic on a 13" Macbook Pro. Because I am not a gamer, I am not too interested in the GPU differences between the unreleased 2012 iMac and the current non-retina display Macbook Pro. My question relates to the CPU speed differences between a desktop CPU and the comparative mobile CPU. If I buy a specced out 2012 Macbook Pro with SSD and a 27" thunderbolt ACD, will this give me roughly the same speed as the unreleased 2012 iMac? Now I know that we don't have any real evidence on the refresh of the 2012 iMac as of yet, however I basically want to know if Ivy Bridge CPU's are similar in speed between the desktop and mobile models. When working out the costs, it is a little bit more expensive to buy the Macbook Pro, however, I am also able to use the 15" display as extra visual space. So what do you guys think? Do you think the high-end iMac be substantially more powerful than the Macbook Pro counterpart? Thanks very much in advance!