Can't seem to find an answer to this on the forum so thought I'd ask. I'm looking to get an iMac in the next couple of weeks and one of the reasons I'll be using Boot Camp is to play the odd PC game. I'm thinking Half Life 2 and Pro Evo Soccer at the moment as I play those quite a bit just now. Anyway, I notice that you can upgrade the Radeon's memory from 128 to 256Mb and I was wondering if this is worth doing - i.e. will I actually see a difference in the performance of XP and games in general? Thanks, Mike.