Chicago's own...Planet Metal will be vending again this year. Check out thier online store to see what type of stuff they carry. I do know they are going to be doing a big order before the show so there will be lots more to buy there.
http://www.facebook.com/note.php?note_id=114166081967523&1&index=0
http://www.facebook.com/note.php?note_id=114166081967523&1&index=0