<---The newbie would like to recommend Lacuna Coil, Evanescence, and Flyleaf. The whole "haunting, dark, melodic chick voice" thing does wonders for scene idea generation. I mostly use it for simple freewriting, though, as it gets tres distracting if you try to write a whole story with Cassie or Amy wailing in the background. Also, Celtic/Irish fiddle music is fantastic to write to. It may not always be light and friendly, but holy crow will it get your adrenaline flowing.
BTW, Brandon, where did you get those songs? Would love to expand my poor, sad lil vg music library... <puppy dog eyes>