I'm not a fan of buying big ticket items from a stranger on the street corner. If you are a student on a budget and want to move up to Full Frame, I would consider a 5d mark ll as an entry level full frame. The Mark ll still has great IQ and you can get one new from BH or Adorama for 2,199(I have seen as low as 1999.), they are in stock and you can return it. Then you can wait for the bugs in the Mark lll to get worked out. You can always sell your Mark ll at a later date and upgrade if you feel the need later.