Hi, just new to the forum for posting,have been reading and I'm learning a lot thanks to all the posters out there. I'm considering purchasing a used D90 with approximately 5000 pictures taken with it and less than a year old. In the past I have always purchaed new, but the price is good on this camera and it would be an up grade from my D40. My question is what should I be aware of or look for when I go to look at a used camera besides the obvious does it work. Thanks so much for your imput.