sorry for my ignorance, I have an opportunity to shoot some concerts, and i dont even have a camera. What would you recommend for camera and lens type? I know I am going to need a couple of lenses, and a quick camera. I have a descent budget, but would like to stay around $2000-$1500 for everything.

I am assuming a great zoom length is needed. Speed, reliability and quality is very important to me. I have some experience working with SLR camera's, and am pretty good with technical things. Thanks in advance!