Free add-on for WoW that offers a button bar with 12 buttons
Version: 2.01UnitButtons is an WoW add-on that provides you with a button bar of 12 buttons for the player, player target, each party member, the player pet and each party pet.
Operating System: Mac OS X
These bars are tied to their respective units, in other words each spell associated with a bar will automatically cast on the unit it is associated with. UnitButtons also provides you the ability to define behaviors to spells based on their type. For example you can make a spell flash when a unit is poisoned, when their health drops / raises to a certain level or even if a buff/debuff wears off.