You can now use the AIM verb to choose which body location you wish to aim for by default when attacking. The chance to successfully hit the spot you aim for is dependent on your applicable skill for the weapon/spell you're using. I considered tying General Combat into it, too, but I don't want General Combat to be the Uberskill. It's already an extremely useful skill as it is.
Aiming melee strikes will have a chance of failing to find an opening to attack, the chance going down as weapon skill goes up. This will not apply to aimed ranged attacks.
Aiming will also take one second longer to attack/fire/cast, though I think I'll have a certain skill threshold at which this extra roundtime is negated.
To stop aiming for a particular location, use AIM RANDOM or AIM CLEAR.
Aim your shots
Aim your shots
The lore compels me!