The Reformed Wiki has produced a transcript of the Bahnsen vs Stein debate. There were transcripts available from other sites, but this site is the best in my opinion.
This debate has garnered something of a celebrity status in apologetics circles. Even adherents of classical apologetics appreciate what Bahnsen was doing in this debate (although they actually claim he was doing nothing other than what a classical apologist would do!). The audio of the debate is not that great, (although Reformed Wiki has remastered it as well and it can be listened to on the link below).
Take a look here.
Other sources:
Discussion