I just recently discovered that the messages and panel discussions from the 2008 Together for the Gospel conference can be downloaded for free! My MP3 player is being put to good use!
Why this conference? Taken from the T4G website:
T4G is convinced that the gospel of Jesus Christ has been misrepresented, misunderstood, and marginalized in many churches and among those who proclaim the name of Christ. The goal ... is therefore to reaffirm this central doctrine of the Christian faith and to encourage local churches to do the same.
Speakers include Ligon Duncan, Thabiti Anyabwile, John McArthur, Mark Dever, R.C. Sproul, Albert Mohler, John Piper and C.J. Mahaney. I'm especially enjoying listening to the panel discussions. :)
Go here for the free downloads!