We are listening to this debate in my Apologetics class. This is hailed as one of the most sucessful debates ever by a presupositional apologist. And since it took me a while to track down a copy of it on the web, I thought I would post it here for everyone.
You can download it here: Greg-Bahnsen-vs-Gordon-Stein-The-famous-debate-that-people-still-talk-about.mp3
And you can download the transcript of it here: Bahnsen_Stein_Debate_Transcript
It was held at the University of California, Irvine, in 1985.
Good job reposting this excellent resource, Nate.
Unfortunately this MP3 file (1.5 hours long) is a combination of parts 1 and 3 of the debate. Part 2 is missing. As of today, however, all 3 parts (2+ hours) can still be found at http://apologetics315.blogspot.com/2008/03/does-god-exist-greg-bahnsen-vs-gordon.html (note the user comment on that site indicating that two of the files are misnamed – part 2 is part 1, and part 1 is part 2)