Grey Daturahs - The first band. They got 45 minutes. The main guy was wearing a Sunn 0))) shirt. They sucked. This makes me angry since the other opener was so good.
Grails - I'd heard their studio album Redlight when I got it for free from Neurot Records because they didnt have the shirt I wanted to order, anyways it was kind of lame but sort of interesting. Anyways their live show was amazing, I was just expecting some post-rock crescendo type stuff but they incorporated melodies/rhythms from all sorts of world music and even some jazz. Their 45 minute set seemed wayyy too short... and they had no merch

.
Neurosis - I'm glad Scott Kelly broke his face on the microphone during Locust Star or I would be convinced that these guys are not actually human. Easily the most intense and best sounding band (they sounded better than Tool and The Mars Volta

) I have ever seen live. If you get the chance to see them live DO IT! They were so amazing and perfect my mind is still boggled.