Okay, here's the situation: I currently have an early 2008 MacBook Pro 2.2, and I have the opportunity to get the 2009 20'' iMac 2.66 for £661 (it's two months old with receipt!). Do I trade up? Or keep the MacBook Pro? I have to admit that I never take the MBP out of the house, but only use it around the house i.e on the sofa.