Hi, I am soon to be switching from a PC to a Mac. I decided early on that i wanted a iMac. Bu then comes all of the questions. I thought I would see what other people would buy. I am leening towards the 208GHz 24" model with no upgrades. But here are a few questions: First of all is it worth the extra £200 for a 24" model? Second, is it worth the extra £90 for the best graphics card? (baring in mind i am not going to do anything hugely graphics intence on it) Third, should I be upgrading the memory from the standard 2GB? And last should i purchase Apple Care?