If you like "Scarface" I recommend "Carlito's Way". I like it better than Scarface and both Pacino and Sean Penn give excellent performances.

As for other Mafia films, I recommend "Casino" and "Donnie Brasco". I also recommend reading The Godfather, its a great book.

Riley

P.S. Also, I believe that Little Caesar is playing soon on TCM. Here is a schedule http://www.turnerclassicmovies.com/Schedule/Index/0,,,00.html