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!! :)