Hey all Im finally gona make a switch to mac soon! I was wondering what to go for though. Its basicly between MBP or iMac. I travel about 8 times a year and thats why i would prefer to go for MBP and i would want to know how it runs on a 20" screen. Does it slowdown the performance since it projects on a bigger screen? Can you even play a game? (maybe COD4?) or at least half-life 2. Also is there like a cooling pad/stand so i can hook it up to so it cools down and acts like a desktop? Maybe put it next to my feet.... If a MBP runs fine like this then i wouldnt bother looking into iMac. What do you guys reckon? MBP 17" with 20" external monitor Or iMac which satisfies my needs and just suffer when i travel ? P.S would a 17" work better than a 15.4" on an external?