Alright so I'm helping a guy set up a small studio for portraits and stuff, and I need some info on the lighting set up. What would be the best choice for small groups or single person portraits? Hot lights, strobes, or what? And what accessories would we need? Umbrellas and stuff? I don't really know that much about it other than the little bit I've read in a book called "Exposure and lighting" which only had a small chapter on the stuff. Any advise would be awesome.