Yes That's a great movie, but the third one is even better. Great story and pretty good actors and a great big chunk of comedy.
But I like to be scared and one of the most scariest moments in a movie is in "the Exorcist 2". There's a great scene that runs for a long time. first you expect something to happen, but after a while you get safe and then... there's a great scare there. I will try to copy this to my next short film.
"Dagon", a movie based on a novel by H. P. Lovecraft is also a bit scary. Many scenes are truly great and according to a friend I was near fainting at one point. I only know that it was a very macabre scene and I nearly couldn't se it. Great!
And I love Halloween.