My post from that hardware thread on how I heal with Grid....
Definitely need to try out that "Sandio 3D Mouse"..
Currently using new newer
[Logitech G5 Laser Mouse] and not sure I need to have much more at my fingertips.
Playing a holy priest atm and have 9 spells bound to my mouse all with a one button push to cast using Grid and mouseover macros.
Greater Heal 1 - left tilt mouse wheel
Greater Heal 3 - right tilt mouse wheel
Greater Heal 7 - move wheel back
Flash Heal - move wheel forward
Renew - push wheel down
PoM - back left side button
Dispel Magic or Remove Disease - front left side button
Prayer of Healing - first button behind the wheel
Binding Heal - second button behind the wheel
not sure their is a efficient setup for healing in my book....if so I am willing to change
also using Clique to bind offensive spells to the mouse to cast on enemies only and
[Fang Gamepad] on my left had for a few keybinds and movement.