So I hope to have enough money to get a 27" iMac by September, which hopefully the iMac's get refreshed by/around then. The 4850 is good, but I was wondering, is it likely to get a better GPU? I know the ATI Radeon Mobility 5xxx series is out, but what are the chances of Apple putting them in the iMac's, is it even possible? Thanks. EDIT: I remember Steve Jobs saying something about Mac's in 2010, that they would be really good or something, hopefully that includes the iMac's performance.