Calvin Seminary hosted a conference this past September which reflected the life and teaching of Herman Bavinck, who was a contemporary of B. B. Warfield. There are 13 messages to the conference. I have not listened to any of these messages yet, as I have an iPod full of material at the moment, but I will be checking this out soon.
Unfortunately these lectures are in Real Audio Media format.
A Pearl and a Leaven audio >>>
There is also an interview on file at Reformed Forum, interviewing Dr. Ron Gleason who has a biography soon to be published on Bavinck.

