My parents' love for Godzilla got me into big monsters (I was a massive G-Fan when I was a kid). My dad's love for horror sort of got passed down onto me genetically, I think. MST3K's making fun of Corman and Bert I. Gordan and such films got me "curious" but not too curious. And my dad watching things like Blood Of Dracula and Curse Of Frankenstein always got me interested in that sort of thing, again, curiousity.
Though the main thing? Resident Evil. Got it when I was nine. I'd liked spooky things off and on, Halloween was always interesting. But as I got the crap scared outta me by RE, I became hooked on the creepy crawlies and tension of horror. Dawn Of The Dead pretty much solidified it for me.
Growing up on White Zombie helped, too. (started listening when I was 9, when pops got me Way Of The Warrior)
....movies, videogames, AND music...books, not really. But, hey, 3 outta 4 ain't bad!

Guess that about covers it. Bye now. *runs away*