For a great, free, downloadable MP3 lecture series visit:
http://www.maclaurin.org/mp3_group.php?type=MacLaurin+Campus+Lectures
There’s lots of interesting stuff on ID, Darwinism and related topics by such people as Denyse O’Leary, Mustafa Akyol, Michael Behe, Del Ratzsch, John Angus Campbell, Alvin Plantinga, and more.