Hi everyone. I was recently granted the opportunity to do head shots for my college's sports media guides. They used to be done by the Sports Information Director, but a new one was hired who knows nothing about photography and he asked me to help him out with this task.
I am rather new to taking portraits. The equipment that I currently have, and would use for this task, is a Canon 350D and a Sigma 24-105 f/2.8-4.0 lens. If I need to use a flash, I would consider using the built-in one on my camera body.
Is there anything else I should consider? Would I be better off buying an external flash? If so, would a Canon 420EX be a good choice (money is tight right now)?