Hello! I'm new to this site and I'm trying to get into photography. I've taken pictures for years with point and shoot cameras but I just purchased my first SLR the Nikon D80. I purchased the body and the 18-135mm lens, an extra battery and a carrying case. I have been practicing with setting up subjects and sceneray but now I finally have the camera to take great shots! A friend of mine is getting married in two weeks and asked me to take pictures. They were not going to hire a professional photographer so anything I get will be more than they were going to have. I'm going to do very basic automatic shots b/c I don't know how to do manual shots yet. I'm excited for the opportunity and I want to give her some nice pictures. I need advice on what else I should purchase. I am looking at shoe flashes but don't know which one to get. I also want to get a rotating arm. Do you think I need to upgrade my lens or will the one I have work? Anything else I'd need to get started? Thank you!