Howdy, me and my wife are on the market for a new imac. Our needs are picture editing, digital drawing and in the best case some gaming as well. For these needs ive been looking at a used 27" i7 3.4 ghz with the 6970. If we dont buy this used one we would probably get the 21" when its released. My thinking is that since the 2012 might only be a spec bump, would we get more performance out of the 2011 27" than from a new 2012 21"?? I know the specs for the 2012 are not revealed but I would anyways appreciate som speculative answers. Cheers.