I'm still a kid at heart so I can't watch scarey movies unless they have been out for about 6 years. Them the effects are cheesy and I don't have nightmares.
The only book that had a cat in it that scaired me was "Pet Cemetary" The movie was nothing compared to the book.
I hate to say this but the Ring did not scare me all that much. I think the fact that everyone told me how terrifying it was had me all pumped up and when I finally got to see it, I was waiting for something horrifying to happen. Now when the old version of Stephen King's The Shining is on, I can't even watch the whole thing, I have to turn it off when the little boy sees those two little girls in the hallway!!
Jeepers Creepers scared the you know what out of me. I went to the drive in to see it when it first came out, and I was scared to get out of my car to to to the bathroom. ha ha, silly I know.