$700 for a DRebel in good shape is a good deal, as long as it has not been
abused. i do not mean on purpose, but a novice to digital photography, who is
not familiar with digital cameras can do damage accidentally. You should make
sure that it is in good working shape, there has not been alot of dust
accumilation on the sensor. In the DREBEL it would take a moderate amount of
dust to even be visible in any images, thanks to the sensor type and camera
design. As others have said, check out the warranty situation, and if possible
have a camera repairman or knowledgeable clerk in a camera store look over it,
if you are not confident in your ability to do so. This is a great camera for
novice or expert and am surprised that your neighbor has decided it is not for
him. His loss, maybe your gain

. It also responds well to the best L lenses
very well.......good luck and enjoy it if you buy it.