Coagula, from Boston, have recently emerged with a wonderful breed of good ol' fashioned crusty death metal. The production is just gritty enough for the genre without being unbalanced or unpleasant, and the riffage is a pounding groove rich with d-beats. I'm a sucker for d-beats. (I swear that phrase isn't as dirty as it sounds.)
Anyway, Coagula is highly recommended for: trench warfare, sitting in a dimly-lit room reading blogs, and fleeing a ravening swarm of undead.