What do i do now that I'm hosting a Web Server?

[netshet]

You can actually host your own DNS servers - even if I'm not sure that's a very good idea cause it's a real full time job...

In that way, you won't have to pay anyone. Also, while it's highly recommended that you have two DNS servers, for fault tolerance, it's not a requirement.

My best advice would be that you can use the Windows DNS server to do so, and you can even host the DNS server on the same machine as the Web server. All you need to do thiis is forwarding DNS connections to the IP address of your Web server on your private network.

In your domain configuration, you'll ask to point to the IP address on the public interface of your router for your DNS server.

Also, you can have a look here, this might help (a lot): http://quick-help.net/Host-Own-Domain

Don't hesitate to write another post if you have some more problems with this DNS stuff.