Someone posted a used iMac near me a few days ago. I'm in the market waiting for the new one, but this deal seems really good. Is it too good to be true? Photos look good. No cosmetic issues apparent. Late 2011 27" 2.7 GHz i5 2 TB HD 512 MB 6770m 4 GB RAM Mountain Lion No keyboard or mouse included. $800 cash. Am I missing something? Assuming I have to drop $150 for a mouse/keyboard. I can spend $250 and upgrade the RAM and put a SSD in it. Then I have a pretty decked out machine for $1200.