As sarah and Tcav said, It is really risky to get a used dslr, for an example. I just recently sent my 10 month old canon T1i in for service. As I used it allot in the 10 short months I got it almost 14000 photo. If you get one that has seen allot of service, there may be hidden problems that will manifest it self, and you will spend time and money to get it repair. Well over the 100 dollars more then the close out price for the e520. And if my camera was not under warranty, I am sure it would have cost over 150, as they had to change out a part with the electrical problem.
Super Frequent Flyer, no joke. Ex Patriot and loving it.
Canon Eos 60D, T1i/500D, Eos1, Eos 630, Olympus EPL-1, and a part time Pentax K-X shooter.