I remember a toolbar mob developed by a guy called 'Laz", unfortunately I can't remember the name of the mod. You could apply logic to your tool bar and buttons and change the spell applied to that button to anything dependant on the logic script you setup. (And this was back in the day when you could change a toolbar/spell during combat).

I could play a Rogue with literally *1* button press and the mouse for movement. The toolbar was setup in such a way it would take into account the mobs health, your health, adds (& # of adds), combo points, energy, cooldowns etc.. All I had to do was literally BASH space bar and the scripts would change the spell on the toolbar and it would cast whatever spell I had scripted to appear for a given event. I even took it one step further and setup my G15 to bash the space bar every .5 seconds for me. I would kill mob after mob after mob by simply moving the character with my mouse, right click the mob and the "bashing" would take care of the *entire* combat sequence. Needles to say it was a boring as you can get and it didn't last long.

Ahhhh.... the good old days of in-game automation