retail

I would like to get started in Martial Arts. Since I'm a bit older and not in shape, I thought about taking private lessons to start. I'm in the Philadelphia area. Do many places offer private lessons? What is the average cost for such a package? How often does a a new student train or go to class? How long does it take to get proficent? I am a big fan of Pat Croce, who is a black belt in Tae kwon do. That's where I would like to start. Please help! Jim