Great band... that live version of Hellion is awesome. Love Blackie's intro (part of it was cut out in this vid) - "Somewhere in southern California, a heavy metal child thunders down the highway. He is the man that doesn't die, he is the outlaw that rides, he is... THE HELLION!!!"
I think The Headless Children and the self-titled debut are their best albums, though I'm not familiar with much of their stuff after "The Crimson Idol".