EWTN frequently republishes some its shows as mp3s via their iTune feed. In May (5/1/2006), they republished a series by Father Benedict Groeschel on helping the Church in these difficult times. How to write a letter to the pastor, bishop, etc, how to form a committee to address a particular issue, etc.
Here's a link to the set of EWTN podcast feeds. I orginally subscribed to the whole set of feeds so I get everything.
EWTN pocast feed link
Let me know if you have any questions!