Actually, if you really have a 101, that frame is plastic, not metal. It only looks metal... there is a nice thread on how to fix stuck power buttons in this very forum. You could try searching for it.
However, if you have a 201 (Prime)? Then your case is metal.
In either situation, carefully opening it up could let you adjust the frame from the inside-out, to pop-out the dent. But you'll likely void your warranty in the process.