Perusing the web I stumbled across this fascinating (albeit technical, if that's your bag) article that includes a question/answer with Fumito Ueda and Hajime Sugiyama about the making of Shadow of the Colossus. Check it out here:

**Update**
The original link to the presentation is now dead, so go here for a summary:
http://www.gameanim.com/2007/09/18/shedding-light-on-the-shadow/

Or here for the original article (in Japanese):
http://game.watch.impress.co.jp/docs/20051207/3dwa.htm/

Just as some of you, I patiently await Team Ico's next release, The Last Guardian. Until then, enjoy the above read!

Great Read about Making of Shadow of the Colossus