During the car trip down to Pietermaritzburg, we listened to part of King Lear. It was fun to understand the play from a different angle, and the best part was that the recording was free! It had its flaws, but it was good enough to make me want to check out more of LibriVox.org.
LibriVox has thousands of recordings of public domain writings, from Aesop to Zola. Everything is put together by volunteers and released into the public domain. It sounds too idealistic to be true, but it seems to work just fine.
It isn't perfect, but is a great resource, especially in deep dark Africa where libraries don't stock audiobooks!