auto-aim toggle .. for the love of god!

Please let us DISABLE that auto aim. It's completely fucking with some builds.
It's almost impossible for my monk to hit his bell on certain bosses, especially the larger one, because he rather decides to track the ginormous hitbox of the boss than hit his damn bell.
Other melee classes same thing.

For ranged classes it's REALLY detremental when you WANT to hit the environment, for example with an exploding shot, but the game won't let you and auto-targets a mob near the mouse coursor.