The Voice of Truth Podcast, Norman Geisler speaks on the subject: Can Atheists Live Without God? Geisler discusses what atheists say, what the Bible says, and what the evidence shows. He argues that atheists can't live without God logically, morally, psychologically, and religiously.
Interview with Norman Geisler here. Pick up I Don't Have Enough Faith to Be an Atheist also.
Full MP3 Audio here. (55 min)