Audio Books
Perhaps you are already aware of this …
LibriVox is an online digital library of free, public domain audiobooks, read by volunteers. In October 2009, it had a catalog of 2,700 unabridged books and shorter works available to download. About 90 percent of the collection is in English, although LibriVox recordings are available in 26 languages altogether. -Wikipedia
The several LibriVox titles that I checked were also available through the Project Gutenburg website.