Hey, My friend asked if I would take some pictures of his band. I'm not getting paid, and he isn't expecting much, but I still want to do a good job. He wants a few pictures of his band in a group, but I've never really done anything like this before. Some advice would be awesome. I have a 40D, 17-85mm 4.0 and a 50mm 1.8, which means I'll have to do this without flash... Thanks for any advice!