I've been really happy with my 27" iMac, and had no plans to upgrade for at least another year. I've been offered pretty much what I paid for it by a guy I know. See the attached specs of my current machine. My only upgrade from here as I see it would be to a Pro...With the same 27" screen, a minimum of 16GB RAM, and a faster CPU..Graphics are also important, with a 2GB card essential. I've never owned a Pro, but I'm thinking that if I sell my iMac now (and get virtually all my cash back) It could be the right time. So...Question to Pro owners: What spec would you recommend? I do video and music editing, Photo work using Aperture, Logic Pro etc. I do play the odd game, but that's not really all that much of an issue since 2GB dedicated GPU would eat everything the way my iMac does now. What kind of money would I expect to part with here...I need a Minimum 1TB hdd or possibly 2 if the budget ran to it.