I heard a good portion of this lecture on Mothercorp last week. Quite fascinating. Biology and physics. Not much of the anti-god stuff. I include it here because I am so glad to have found it through Digg. I was seriously considering ordering the recording from Mothercorp. And I still might. This video is 23 minutes long. The Mothercorp program was 60 minutes (which included some questions at the end.) Maybe Dawkins has more than one version of the lecture.