Crosstalk has a radio broadcast of a talk by Paul Washer, given in February 2008. Paul, in his usual uncompromising and clear way, presents the essence of the True Gospel of Jesus Christ. Well worth a listen.
The Crosstalk site also offers this broadcast in RealAudio and Windows Media formats.
My wife and I have recently finished listening to Dr Packer’s lectures on the Puritans, recorded about 20 years ago at Reformed Theological Seminary. The Puritans did not conform to the misleading stereotypes that we have of them, but had a zeal for making the most of life by putting into practice what they found in Scripture. Dr Packer is engaging on this important subject, and we give the series our wholehearted recommendation.
You can hear this series for free via RTS on iTunes U. You can access the series here, or, once you’ve managed to get to the iTunes U area in the iTunes Store, navigate to Reformed Theological Seminary > RTS/Virtual Courses in Church History > History and Theology of the Puritans.