I'm shooting football tonight for my high school, but I'm worried it'll be extremely difficult with the poor lighting..I haven't done any sort of event with lighting like this, so I'm looking for tips here.. I'll be shooting with a 7D (which can shoot up to 8 FPS) and a sigma EX 70-200mm 2.8, and I want some clear action shots so I want my shutter speed up. I don't have a monopod so I'll be shooting handheld. Can anyone give me tips that'd get me shots with good lighting where I can maintain that freeze frame look? I don't really care about DOF tonight since it's my first night shooting -- Also I know that every scene's setting is a different, but can anyone supply a starting point for me to use in terms of aperture and shutter speed? Lastly, I have a 4 gig card.. I know shooting in raw would allow me tons more room to edit, but I also want to take a lot of pictures (Large) so I'm contemplating just shooting in JPEG .. Thoughts? Thanks.