DNS,Zone Files and Host Names

I'm setting up a Mac OS X File Server (10.2.4) for use as a primary DNS server. I've been playing with Bindery and DNS Helper to assist me with the configuration of the zone files. Everything seems to be pretty straight forward with regards to the use of both of these applications. I just have a question with regards to the host name on the server. The Primary Domain Name is: [b:79caec4c2d]example.com[/b:79caec4c2d] The Primary Name Server is: [b:79caec4c2d]ns1.example.com[/b:79caec4c2d] Because the OS X Server now has [b:79caec4c2d]ns1.example.com[/b:79caec4c2d] associated with it as the Primary DNS Server, am I allowed to also give it a regular host name such as [b:79caec4c2d]xserver.example.com[/b:79caec4c2d] and point all my CNAME Records to that? Or is [b:79caec4c2d]ns1.example.com[/b:79caec4c2d] the only host name that can be associated with the server and all CNAMEs need to point to [b:79caec4c2d]ns1[/b:79caec4c2d]? Thanks, Darryl