Horror fiction recommendations

I am about to graduate college and after all the heavy, classic texts I've read, I want to read something that's just plain fun/exciting/entertaining. Since I love horror films, I thought I'd go for a horror book, but haven't really read too many. I want a book that's as scary as it gets.
Right now the book I'm thinking is "It," but it's so long I'm not sure if it's worth the time. What do you guys think? Any recommendations or thoughts on "It" would be helpful.