For all of you HTPC owners on Media Center running MyMovies, Open Media Library, etc...
Check out Media Browser, Salami's Movie Organizer, and TV Scout.
So far, I'm really impressed with all three software. Combined, they're dynamite. Of course, this means going through your entire library *AGAIN* but I think the payoff is quite high. We'll see how it rolls after several hundred movies. Very fast. Gorgeous.
BTW, the link doesn't do the software justice. Load it and see but BACKUP your existing stuff or try it on another box for testing. Don't go jacking up your library and looking to hunt me down. :)