Hello! I'm thinking about changing from Windows to Mac. I bought an iPhone about 4 months ago and since that, I started to love and enjoy all coming from Apple. I like the 21'5" model, the one with 1 TB and ATI 4670 it's perfect for me. I will use it for photography (Lightroom, Aperture), to organize my music collection which is very very big (iTunes)... But I also like playing games and I am wondering what can I expect from the 4670. I like playing games like Modern Warfare, Fallout 3, Oblivion, GTR 2, Mass Effect, Dragon Age... -Will I be able to play at Full HD? -Now I use a AMD64 3200+, 2 GB RAM and a GeForce 6600GT with Windows XP.What about the speed change? What do you think? Thanks for your help.