I featured this site a while back, but since then it's gotten a major face lift. It's now extremely easy to find any movie you want to watch.
They have good updates and pretty decent quality videos. But the best thing about this site is the amount of links. They have enough movies to keep any movie buff happy for a couple of months.
Check out their complete list of movies...here.
I really like the direction that WizMovies has moved in, it's simple but yet very useful.