Unarmed Combat Maneuvers by Raymond J. Bull 

These are some of the ideas that I've come up with.  Some of this was
already posted on WebRPG.  Hope you like it.

Hand Attacks          To Hit  Damage  Notes
Cross                   ---    HTH    A standard punch
Jab                     +1    HTH-2   A quick, light punch
Hook                    -1    HTH+1   A slow, arcing punch 
Uppercut                -1    HTH+2   A rising punch, used at close range
Reverse Punch           -2    HTH+2   A twisting punch that comes from the waist
Backfist                +1    HTH-1   A quick, whipping punch

Kick Attacks          To Hit  Damage  Spinning  Jumping 
Front Kick              -2    HTH+2      No       Yes
Roundhouse Kick         -3    HTH+3      No       Yes
Snap Kick               -1    HTH+1      Yes      No
Side Kick               -2    HTH+3      Yes      Yes
Hook Kick               -1    HTH+2      Yes      No
Eyebrow/Crescent Kick   -2    HTH+1      Yes      Yes
Trip                    -1    -----      No       No
Sweep                   -2    -----      Yes      No
Feint                  ---    special    No       Yes
Spinning                -2     +2     Cumulative with other modifiers
Jumping                 -1     +1     Cumulative with other modifiers

Throws                To Hit  Damage                       Notes
Minor Defensive Throw   +2    Equal to Opponents Move      Delayed Action
Major Defensive Throw   +1    Equal to Opponents Move+HTH  Delayed Action
Minor Offensive Throw   -1    HTH                          Attack
Major Offensive Throw   -3    HTH+1/2 STR                  Attack(Body Slam). Attackers 
  carrying capacity must be greater than targets weight