SOA records

[SOLARlS at aol.com]

Currently I have my .db files in my primary set up like this.  Are my SOA 
records correct or should they be the same as the domain that I have the "A" 
and "MX" records for in this particular file in the .db file.

;
; aac-arts.com.db
; $Id$
;
@  IN  SOA  web60.websgt.net. webmaster.websgt.net. (
                        1999081348      ; serial - yyyymmddhh
                        28800           ; refresh after 8 hours
                        3600            ; retry after 1 hour
                        604800          ; expire after 1 week
                        86400 )         ; minimum TTL - 1 day

; Name Servers
                IN  NS  ns1.websgt.net.
                IN  NS  ns2.jtinternet.com.
;
aac-arts.com.               IN MX       10 aac-arts.com.
localhost                       IN A        127.0.0.1
www.aac-arts.com.           IN A        216.32.58.150
aac-arts.com.               IN A        216.32.58.150

Thanks for your response.

Greg