One player that has really peaked my interest is Enes Kanter. My fear however is that he may not be big enough to play the five.
Draft Express last year listed him as height with shoes: 6'10.5, weight: 255, wingspan: 7'1. And he was 17 at the time. There's a good chance he's grown since then and even if he hasn't, those are good enough measurements to play the center position. Hell, Ben Wallace won Defensive Player of the Year 3 times while measuring an inch shorter.