Fixing D20 (rules mods)

I have always felt the D20 system was one of those good ideas with poor execution. The primary flaw of the system is in combat where the demands of "heroic fantasy" made the game an absolute chore to run.

So, I made changes to make it faster (less actions, no AOO) , more lethal (vitality and wound points),  reworked armor (so it has both AC and DR), called shots have actual effects and made conditions a more integral part of injuries.

This is primarily just a collection of rules from D20 products that I found to be useful for me.