More for you.
Go here:
http://openbsdsupport.org/
4th one from the top called "OpenBSD as a domain name server"
Also you can read to get understanding of DNS usage here:
http://cr.yp.to/djbdns.html ( that's not bind, but provide good detials
on how things work as well)
Same here:
http://lifewithdjbdns.org/
and then the big bible on bind
http://www.isc.org/index.pl, the specific section on BIND.
And finally there is the man page as well.
But just the first link will definitely get you going for sure.
Best,
Daniel
