Dr. Michael Brown and Dr. Bart Ehrman debate the topic: Does the Bible Provide an Adequate Answer to the Problem of Suffering? at Ohio State University on April 15, 2010. More information about this debate can be found at the debate website.
Full Debate MP3 Audio here. (2 hr 10 min)
For some books dealing with the problem of suffering:
The Problem of Pain – C.S. Lewis
The Many Faces of Evil – John Feinberg
When God Weeps – Joni Eareckson Tada & Steven Estes
The End of Christianity: Finding a Good God in an Evil World – William Dembski