I was thinking of using:
Metallica's - Sanitarium, Orion, Call of Ktulu and the Thing that Should not Be;
Danzig's - Not of this World;
Ozzy's - Dairy of a Madman;
The themes from Nightmare on Elm Street, The Omen, and Halloween.
As far as using music as a theme or ispiration, I've always wanted to come up with a campaign based on Black Sabbath songs.
>:->