Well, really Civil War lead up for right now.

http://civilwarpodcast.blogspot.com/

You can get this through itunes and with other podcast apps.

They are taking a detailed look at everything. As you will see they are only up finishing to Fort Sumter (a 3 part series) at episode 34. But the first 34 episodes are well worth a listen.

For folks who are interested in learning more about Civil War, they recommend a book with each episode.