Now, I have not read Bart Erhman, but I do know that he is a respected Jesus scholar. Based on what I know I have HUGE disagreements with him, but I do not think we should be afraid to engage those who differ from us theologically.
I would like to hear your thoughts if any on him. Also, here is a link to the Ooze Viral Bloggers post on his upcoming book: Jesus Interrupted (paperback).
http://viralbloggers.com/2009/04/jesus-interrupted-by-bart-ehrman/