That's a resounding stay the course and I don't mind that one bit.  It's
been rock solid and I've been happy with it.

So as a secondary question, we are planning on adding Active Directory in
to our network and I know that it is very particular about it's DNS.  Will
AD be happy with being given a delegate domain to have as it's sandbox or
does that throw my BIND install out the window?

Thank you all for the advise!! :)