Prime Cut

Movielink, movie download service, now has all the major movie companies in its catalog. I haven't tried their service, so I can't speak for the quality of the movie files. I assume they at least have Dolby Digital. They have been at the movie download service for a while now whereas Netflix has made little movement in this area.

The rental service starts at $0.99/download. If you watch less than 18 movies a month, you'll come out ahead over Netflix. There's no membership fees, and delivery is immediate.