Here are a couple more links. If you happen to live by an Air Force base or Naval Air Station, you could go to their open house, they often have all of the pilots survival gear on display. One time I even got a printed list of the issue and suggested opional survival gear from them...

http://outdoors-magazine.com/s_article.php?id_article=269

http://www.equipped.org/sru-16p_kit.htm