U.S.R (Unbelievably Simple Roleplaying) is Scott Malthouse's rules lite game mechanics. It is what my game rules are based on. I have just taken Scott's text and hacked it to my tastes.
Character Background's have been lifted from the Elric! rulebook from Chaosium. Same for the basic equipment table.
Campaign Background is from this guy Thulsa who created his own Sword & Sorcery setting he calls the world of Xoth.
Ben Ball's Random Sword & Sorcery Adventure Generator for use with Astonishing Swordsmen & Sorcerers of Hyperborea is something I also rely on to populate the land with adventure seeds.
The USR character record sheet is by Charlie Warren of The Semi-retired Gamer blog.