A few off the top of my head:
Natural Born Killers: The collage of sound and images is as crazy as the rest of the movie. It'smanic, hyper, and all over the place.
The Shining: Just the steadycam shot through the mountains, tracking the VW with the music. They took something simple and made it creepy.
Shaun of the Dead: People are already zombies.
Orgazmo: More for the song, "Now You're a Man", but it doesn't hurt to have the characters done comic book style.
Texas Chainsaw Massacre (original): I love the clicking camera and the flashes of light, revealing quick shots of body parts. But technically, the shots of the solar flairs would have to be the credit sequence, which I also dig.
Ghost in the Shell: The cyborg being put together looks sweet, but the music makes it even better. Especially cranked up, with that pounding BOOM.