The first time I saw Mastodon was when they were touring Remission. Last time I saw them they were touring Leviathan. They're pretty intense for a prog metal band, and fucking awesome for a prog metal band in general.
For me Modest Mouse's last good album was The Lonesome Crowded West. Trucker's Atlas is the shit.
Cocobat (Japanese Hardcore)
Sin Dios (Spanish Hardcore)
Amebix
Shai Hulud
Cro-Mags
Cause For Alarm
FEAR
Zeke
Man Is The Bastard
Death By Stereo's older stuff
Judge
Rich Kids On LSD
Crass
Guyana Punch Line
TSOL
..Mostly old school stuff but I didn't see much of it mentioned a few pages back.