Whoops, just saw this thread:
http://www.subsim.com/radioroom/showthread.php?t=113859
where somebody asked something similar, and that pointed me to "Shoot", a free voice command program...sounds like just what I need.
http://clans.gameclubcentral.com/shoot/ for anyone looking for where it is, that's an unfortunate name for a tool, really hard to google.