Ghost Train - Controls

As this is a skill based game, I want the controls to be intuitive and quick to access.  The player should not be hunting around for keys on the keyboard, but should be able to keep their eyes focused on the screen.  Thus the keys have to be grouped and used in a manner that would allow for ease of play.

There are three control groups:

1. Character select.  This is number keys 1-5, to be accessed by the fingers of the left hand.
2. Action button.  This is the spacebar to be pressed by the thumb of the left hand.
3. Move button.  This is the arrow keys to be used by the right hand.

The flow of play would work like this:  Select a character, move that character into place, then hit the action button.  Select the next character...and repeat.  The position and facing of characters is important as the ghost will be moving and attacking and most actions have a small area of effect so characters will need to be close.

I'm focused on Windows development at this moment, but keeping Xbox in mind as well as I want to see this game on XBLA at some point.  I've considered controls for the Xbox controller and map the ideas above like this (though this would need to be tested out):