Pgardn,
Not to necessarily compare the 2, but Arvedas Sabonis was over 30 when he came to the NBA. With the exception of playing Shaq, he was a damn good player. Shaq took so much pleasure in dominating him, but he was really good against anyone else lol.
Best player not in the NBA- Greg Oden, Kevin Durant, Al Horford, ROY HIBBERT (why are you not going pro!!! you need to be a T-wolf!!!), and this guy:
http://nbadraft.net/admincp/profiles/yijianlian.html