This is an ace idea, I'm racking my brains! I'm also really into metal, but like other stuff too. I used to hate electro and whatnot. I had the assumption that if it came out of a computer, it was bad news! I now realise this is not true. I found I like experimental bands like **** Buttons, who mix distorted vocals into their sound.
Folk! But check out european pagan folk, they have a thicker, richer sound with cool instruments.