Problem with passwording it though is then no one can get in unless they have the password - so if your not an established server, with out a following you will just have an empty server, or a small server with a few friends.
It really isn't that bad keeping cheaters out -I can go 2-3 days with out banning a cheater.
If one comes in - ban him. If he changes his IP and comes back, ban him. If he does it again, compair IP's and see if an IP range ban will work - usually it will - in that case he is banned until he changes ISP's or some how routes through a different network.
I would give up BHD before resorting to requiring novaworld login and password protecting the server
IcI