I found a really really good debate between Hassanain Rajabali [Muslim] and Dan Barker [Atheist].
http://www.youtube.com/watch?v=9c5-vVwJ ... PL&index=3 (http://www.youtube.com/watch?v=9c5-vVwJ2eQ&feature=PlayList&p=85F30B86E61FF175&playnext=1&playnext_from=PL&index=3)
The only thing I can say about people who debate for God, is that they go beyond what their "book" explains God as. For example, Christians bend over backwards to make God more than what the bible says. They say God cannot be criticized by our realm, but then why are they using this ancient, barbaric book to understand our current world.
I think atheist need to capitalize on the fact that many of these believers are bringing forth very good "defenses" (for a lack of a better word), but even if there was a god, there is no need to worship him like it says in the bible or quaran.