I also like Movienizer. I've been using this organizer for a year or so and am very happy with the functionality and the clean design of the program. It supports many scripts, I can find any information about a movie, besides, I can add my own sites to its database. I like the function of its loan manager that helps me track where my movie or disc is. The program is simple to use, plus it's a freeware -
www.movienizer.com