Thought you'd be interested in some talks by philosopher and advisor to the Pontifical Council for Culture John Haldane that I came across via a Google search.

http://www.abc.net.au/sundaynights/stories/s2302457.htm - An interview on Australian radio focussing on Haldane's analytical Thomism viz a viz postmodern perspectives. Includes a lovely choir piece by Thomas Tallis.

http://www.stpt.usf.edu/hhl/radio/whyiamatheist.htm - Interview outlining Haldane's reasons for his theism.

http://www.catholica.com.au/forum/forum_entry.php?id=14042 - A debate on Australian radio on whether morality can exist without God.

[UPDATE: direct download]

http://www.christianworldviewconference.org/audio/2007conference/ - Poor quality audio of presentations by Haldane and others (eg. Philip Jenkins & Fr. Richard John Neuhaus) at a conference on the Christian Worldview and the Academy.