A woodlouse hunter, Dysdera crocata. I rescued this one from my cat. Those giant chelicerae and fangs are actually for prising open land isopods: they're one of the few arthropods that prey on sowbugs/pillbugs/woodlice. People often mistake these (well, and any brownish or greyish spider) for brown recluses, but the color on the carapace is almost a garnet red. They're beautiful spiders and I love finding them.
Link
RX-149Dragonite
Cool!