Where is a good place to buy 2nd hand cameras in miami?

Am looking for a digital SLR, but don't want to pay that much - dont mind if it's used.

Go to one of the better camera shops.. they have the lastest camera, and they let the customers "trade in" older models for new cameras.
these cameras are clean and work. and are cheap. they also will help you learn how to work the camera. also a short warrenty should be included