Sorry to hijack the thread, but I'd just like to say to Boo that your "shooting gigs with a 602" guide came in pretty useful for me recently. It helped me get some great shots at several shows.
And even deviating from that a bit, I've found that as a "random person" shooting shows (as opposed to working for some publication or other) it's a lot easier to get photopasses in America than it is here in the UK.
Usually my requests get completely ignored, but when I went to LA for three weeks recently I ended up shooting shows almost every night, and for pretty major bands, as out their the publicists response was usually along the lines of "Sure! And we're having a party after the show at suchandsuch club. I'll put you on the guestlist for both."