PRO FES SIONAL BAS KET BALL IS THE KIND OF CA REER THAT YOU DREAM ABOUT hav ing when you are a child. For years and years, boys and girls have imag ined be ing the one drib bling the ball down the court, stop ping at the three-point line and launch ing the win ning shot. Children have of ten pre tended to leap into the air and pull off an amaz ing 360-de gree wind mill dunk, all the time won der ing what it re ally would feel like to ac com plish such a feat. Young sters yearn to some day be the.