A buddy of mine wants me to shoot some shots of his band tonight at a local bar.. I've never shot anything like this before so I have no clue as the what settings I should start with.. I have a nikon D80 and a SB 600 flash.. I'm assuming I don't want to use the flash because it will wash out all of the lights on stage...So what iso, shutter speed, and aperture should I shoot for?.. Granting I know I'm going to have to tweak it from there.. Thanks in advance guys and gals!