Dr. John MacArthur, "The Emerging Church"
Dr. Larry Pettegrew, "The Emerging Church Paradigm"
UPDATE: Apparently, the demand for these lectures is so high that the Master's Seminary site is having problems. I have contacted their webmaster to see if there is anything that can be done. In the meantime, please be patient. You can check on the status by going directly to the Master's Seminary "Faculty Lectures Series" page.