Here's an interesting lecture by Alister McGrath, responding to Richard Dawkins: Is God a Delusion? Atheism and the Meaning of Life (MP3). It was given at the City Church of San Francisco in the fall of 2006.
McGrath is Professor of Historical Theology at Oxford and Director of the Oxford Centre for Christian Apologetics. He is the author of Dawkins' God: Genes, Memes, and the Meaning of Life, as well as The Twilight of Atheism: The Rise and Fall of Disbelief in the Modern World.
McGrath's wife is Joanna Collicutt McGrath, lecturer in the psychology of religion at University of London. They recently coauthored a response to Dawkin's The God Delusion, entitled The Dawkins Delusion? It just came out in the UK, and will be published by IVP in the US in May 2007. He was recently interviewed about the book and about Dawkins in the Belfast Telegraph.