Found another Jewel -Hugo Award Winning Book - audiodramatized free
A Canticle for Liebowit
A Canticle for Leibowitz is based on three short stories Miller contributed to The Magazine of Fantasy and Science Fiction, it is the only novel published by the author during his lifetime. Considered one of the classics of science fiction, it has never been out of print and has seen over 25 reprints and editions. Appealing to mainstream and genre critics and readers alike, it won the 1961 Hugo Award for best science fiction novel.
http://en.wikipedia.org/wiki/A_Canticle_for_Leibowitz
A 15-part full-cast abridged serial of the novel was adapted for radio by John Reed and broadcast in 1981 by National Public Radio (NPR). Directed by Karl Schmidt, it was produced by Karl Schmidt and Marv Nunn. Carol Collins narrated the production
The production, acting and narration is extremely well done.
It is free and in the public domain to listen to/ download at :
http://www.archive.org/details/ACanticleForLiebowitz
The chapters are not in order so pay attention to the number each chapter is about 25mins long.