Hi, first, I didnt know if this thread should be here or in Buying Tips, but anyway. My doubt is about the brand new 27 iMacs processor, If I should buy a more GHz one, but with only two cores, or should I buy little bit less GHz one, but with four cores. It really worth pay $200 more? It really worth the four cores? My main needs are run CS4, some Final Cut, maybe Logic Studio, and switch between different OS's (OS X, Windows, and Linux). I think even a 21.5 model would be more than enough, but I just wonder If Quad Core gonna give me more power (I hope so).