How much could I realistically expect to get for a 27 inch, late 2009 iMac with 2.66 Quad Core i5 Processor, 1TB Harddrive, 4GB RAM, 512MB GPU, mint condition that comes with everything that came with it and Apple care? I couldn't find any on Ebay or my local Craigslist, so I'm wondering what I should be selling it at on either Ebay or Craigslist. Any ideas?