-Pet Semetary
-Carrie
-IT
-Stand by Me
-The Shining
-Misery

I also liked Secret Window, but not as much as the others I mentioned.

~sidebar~ Has anyone seen the version of The Shining that is 6 hours long (like a miniseries)? Well anyone who's a big fan of the book should read it because unlike Stanley Kubrick's version of it, it follows the book almost 100%. I just watched it a couple of days ago and although no one can hold a candle to Jack Nicholson's performance in the original Shining, if you've seen the miniseries, you gotta admit it's a better, more explaining, story. Possibly because Stephen King actually had a bigger role in the actual MAKING of this film.

P.S. I also love the miniseries Kingdom Hospital (even though it wasn't a very original idea of Stephen King's.)