I just finished listening to Count Karlstein by Phillip Pullman. The audiobook had a full cast, as well as, sound effects and music to go with it. It was a well produced and entertaining audiobook. I would recommend that you listen to it over read it.
In reality the story was good. It had an intriguingly dark plot but it does get all wrapped up with a pretty bow in the end. It would be ideal to listen to with your kids right before bed. I should warn you though some parts are rather scary. It was over all a very British story and I believed that I enjoyed it so much because I loved the thrill of the well produced audiobook.