I'm thinking about replacing the rear drum brake pads on my 2004 Sebring. Are there any pitfalls to avoid or special tools required?

 

If you've done drum brakes before, it's pretty typical. Do one side at a time so you can use the other side as a reference as to how to put it back together.
You can usually do the work without special tools, but a set of brake tools is pretty cheap and makes the job a lot easier.