So I found on craigslist a 2009 27" iMac with a 2.8ghz i7, 32gb of 1333MHz RAM, and a 6970M GPU for $650 I'll be using my new computer for video/photo editing and also some gaming. Is this computer too old? I'm worried that if I bought it, I would have to replace it in the next year or two and I'm trying to avoid that. Is this a good deal or should I try and find something newer?