Hi All, I'm looking to upgrade to a new machine soon, and can't work out what would be better for Windows gaming - an iMac, or a MBP. The graphics cards/processors don't seem directly comparable, as far as I can see, which is confusing. Just looking to boot into Windows occasionally to play Fallout/Oblivion/etc. Nothing uber-intensive. Examples I'm considering: 1) i3 iMac, ATI Radeon HD 5670 with 512MB, 4GB RAM 2) i5 MBP, NVIDIA GeForce GT 330M with 256 MB, 4GB RAM. Now, I don't know a huge amount about specs and graphics cards. I have no idea how the NVIDIA GeForce compares to the ATI Radeon. And how much difference does the faster processor in the MBP make?