He was an art student, an Amiga fan, and a 3D CG animator at Warp (the company of notorious Kenji Eno). He worked on Enemy Zero. Then he entered SCEI (via the Yaroze amateur contest?) after Warp crashed in 1997. He's 35 yrs old now.london-boy said:Sorry about the ignorance, but what did Ueda do before Ico? Cause really, these last 2 games he made are bloody masterpieces.
http://www.tky.3web.ne.jp/~ueq/
http://www.fumi.to/
This is his homepage (the last update is in 2001 though!) with his early paintings etc.