Hey Willis.  Here's a bit o' history and a suggestion for a message board.  If you like what you see here - then you can go to the prototype of this board (albeit ad-supported) at

http://server.com/communityapps/discussionapp/

This was the first "real" message board on the infosource.  I then switched to a unix board that very closely resembled the above board and then on to this one - which was twisted and bent in every direction to make it act like the first one.  So - the more things changed the more that stayed the same.  The board I recommended is very easy to set up and is fairly customizable - so you can make it fit into your site.  It is ad-supported, though.  I liked it and it was pretty trouble free.

Dan