Audio Books

I have calculated the amount of driving I will be doing next week, and it comes to a total of about 38-40 hours. Now that is a lot of time, so I have been thinking about how I could best spend that time for the glory of God and my sanctification. Unfortunately, I don’t have anyone riding with me who can read an entire book (as Joe did with Steve coming back from Greensboro). So I have been downloading a ton of lectures and sermons of late but have also been considering some audio books as well. So I was curious to know if anyone has listened to any audio books and what your thoughts were on them. I listened to a few a long time ago but have little knowledge about audio books in general. If you have listened to some, do you have any that you would recommend? For those interested in checking out audio books, you can find some at Christian Audio as well as this site which has some good audio of the Puritans and Baptists (also here some MP3's of classical literature from CCEL). Any input or recommendations would be greatly appreciated. Also, I have a bunch of chapel sermons from school I need to listen to. In case you didn’t know, chapel attendance is now a part of the academic requirements in some classes. So if I want to get an “A,” then I need to get up on these things. If there are other ways I could spend my time well while driving, please let me know. I really want to make the most of this solo trip, and I desire that the Lord use this time of solitude to school me in His truth.