Just one more vote for keyboard movement, and other keyboard controls. It makes life easier for me.
Click-and-hold mouse movement is probably the worst kind you can have, since you cannot do anything else with the mouse and it's also more straining (for me) than click-and-move.
I also think keyboard movement could be reasonably easy to do in the battles. You just move as normally with the keyboard and press a key when you are done moving. Targeting can be done with the keyboard simply (with tabulator. Since targets don't move around constantly, this is easy for the player to keep track of), you can have hotbars of special abilities with keyboard shortcuts and so on, so I'd think it's reasonably easy to do the basic battling with only the keyboard.
