This might be a lame start, but I loved "To Kill a Mockingbird" on tape. If you haven't read the book, go get it on tape. It's a classic, rightfully so, and hearing it read was just awesome. I don't know whether there are multiple versions (as in, multiple readers).
Another one I really liked was Bill Bryson's "A Walk in the Woods." He's hilarious, and having it read made it even funnier.