I've decided that
Cursed Sleep by Bonnie Prince Billy is my new Twilight theme song. It's haunting and sad, but hopeful at the same time, and I find scenes from the books running through my head every time I hear it. I like the lyrics as well - they describe a man bewitched by a woman, and it seems to me that both Bella and Edward would describe their relationship as supernatural. It seems like something that would fit in well with the movie.
And no, I don't know what is supposed to be happening in the video either.