So i'm very excited for the next few months concerning me and Apple. As long as Apple doesn't ship the iPad 2 before April 15th (in the UK), I will be buying an iMac a month before. However, i'm curious to the graphical abilities of the iMac. My first idea was to get the baseline 21.5" with a 256mb dedicated graphics chipset and custom upgrade to 8GB of RAM. The question is, how good a graphics machine is this for gaming? I want to run The Sims 3 specifically with something called "Advanced Rendering". I can do this on my current 2GHz Vista notebook with 378mb integrated graphics but it's not very fast. Obviously the iMac will run faster. Does anyone have any experience? Are there any The Sims 3 players out there on an iMac who could maybe tell me about running it on high graphic settings? Thanks in advance!