Here is a site I've discovered that I recommend. It's called Storyline Online and it host videos where famous actors read picture books aloud. It kind of reminds me a bit of the show 'Reading Rainbow'. I've listened to several and I was quite impressed! The actors read with passion and expression. The book illustrations were shown in a relevant fashion (some with simple added animation) and the actors occasionally used props, but it was really the expressive reading that stands out. The actors make the stories even better by creating accents or changing their voices as appropriate.
There are currently less than 25 books up, so there isn't a large selection, but they've made good choices on the books that they do have. A couple of them I had on my Preschool Literature page, and I added links on those entries to direct people to Storyline Online, in case people are interested.
Of the books I listened to, two were books I had been debating about adding to my Preschool Literature list. The first is "A Bad Case of Stripes" (listen to it here).
The other book I'd been considering adding to my list is 'Library Lion' (listen to it here).