Here is a great debate (and is the great debate!) on the existence of god. John Lennox (taking the side of theism) versus Michael Shermer (taking the side of atheism) is in my opinion one of the better god debates that I have seen. It is very even handed, both debaters are cordial and polite, they are clear and concise, and most of all there is a great sense of humor with all of the people involved. The debate is serious but everyone keeps it lighthearted enough for the audience to not go nuts.
The debate is broken up into ten parts and it runs about an hour and a half. If you are interested in the god debate, then I suggest you get yourself some popcorn and park it right here.
D
PART ONE
PART TWO
PART THREE
PART FOUR
PART FIVE
PART SIX
PART SEVEN
PART EIGHT
PART NINE
PART TEN