Greetings. Next week I've volunteered my services to shoot a dress rehearsal for the local high school which will be presenting the musical "Annie". I am not to use flash. My camera is a Nikon F100 with three Nikon lenses: 50mm f1.8 lens; a 20mm f2.8 and an 80-200 f2.8 plus tripod.I have two B&W film choices Delta 400(I can push it two stops if necessary) and Kodak CN400(I've never pushed it. Can I and with what results?) Though I've never done this before, I am excited about the possibilities and have confidence in my equipment. Any advice would be most appreciated. A thousand thank-yous.