I currently have an early 2008 iMac (24", 2.8Ghz C2D, 4Gb of RAM, ATI Radeon 2600 pro). I've been wanting to replace it with a MB Pro, 13 or 15 inch. Now, I've come across a rather good deal for a used 13 inch MB Pro (early 2011 model) : http://www.everymac.com/systems/app...-13-early-2011-unibody-thunderbolt-specs.html Don't want to buy a new one, because I want to be able to run SL on it as well. It comes with 4Gb of RAM but I would max it out to 8Gb. I use my mac for everyday stuff : browsing the web, iPhoto, some iMovie, iTunes and some other basic stuff. I also play some games, however. All Valve games, some Indie games and World of Warcraft. Would like to play SC2 as well, but doesn't run well at all at native res on my iMac. Would the HD3000 in the Macbook be sufficient for these games, taking into account that I would be playing them at native res of 1280x800 (as opposed to 1920x1200 on the iMac) ? I would even hope the HD3000 is a little bit better then the Radeon in my iMac, or am I dreaming ? I would keep my iMac and use it as a tinkering machine (would mainly use it with Ubuntu, keeping a small SL partition for when I ever need it). The MB Pro would be used as my main machine, running ML. Second question : is it at all possible to use my 24" iMac http://www.everymac.com/systems/app...24-inch-aluminum-early-2008-penryn-specs.html as an external monitor for the MB Pro ? I don't think it's 'officially' supported, but maybe someone knows of a workaround ?