Digital BW, The Print

I have a 12x12 Calcomp that works pretty well, but is sometimes a 
little on the big side. If money is no object, I would probably get the 
Wacom that has an LCD inside so that you are actually drawing on the 
work. They are expensive, but to me I think this would be the closest 
to drawing, or airbrush on a substraite. If not the Wacom with the 
airbrush stylus as well as the regular pressure sensitive stylus would 
be a recommendation. Probably somewhere in the 12x12 size or slightly 
larger, and maybe the proper stand to go with it (angles like a 
drafting table).