Hi, My pre-unibody (late 2007) MBP has been having some problems and I'm due an upgrade... been holding off for updates but struggling with HD space and trackpad/mouse and keyboard response. I know the benchmarks for the MBP refresh is not yet out since it's only been a day, but does anyone have an idea as to how top spec 15" and 17" MBPs with the 2.5GHz quad i7 would perform compared to the 3.4GHz quad iMac? Specifically anyone with Maya, AutoCAD, Adobe experience of speed and performance, particularly Maya rendering. I was thinking of getting the iMac for the massive screen as a rendering machine as well as home workstation and hope that my current MBP can still perform when I go to uni etc... but if my MBP is on the way out, might be better to get a new portable instead... I just really like the idea of that 27 display... looks amazing Cheers!