Yep, Saw-1 and 2 are pretty scary if you ask me. I like to watch Halloween movies on the week of Halloween, sometimes I'll watch Friday the 13th, I remember when I watched it when I was younger and every-time my birthday is on a Friday the 13th, I always thought Jason was going to come after me. :Ohno: I finally got over that fear.
Here's are the list of some of the horror movies that I can think of right now:
Silent Hill
The Hills have eyes
Dawn of the dead
Snakes on a plane
The exorcist
The Shining
Carrie
13 Ghost
Return of the Living Dead
The Hitcher
Creepshow
Gates of Hell
The Exorcism of Emily Rose
Freddy vs Jason
Amityville Horror
Dawn of the Dead