[CentOS] BIND and a second server resolving itself

Going to test tomorrow after install, but this is what I am thinking may 
work

in my example.com, located on main.example.com,  /named/db.example.com I 
am adding
main2.example.com. IN A xx.xxx.xxx.xxx (this is the second server's ip 
address)

in my example.com, located on main.example.com, 
/named/db.xxx.xxx.xxx.xxx.in-addr.arpa I am adding
IN PTR main2.example.com.

In the named.conf, located on main.example.com, I am adding my entire 16 
IP block of addresses along with my localhost
options {
     allow-recursion { localhost; xxx.xxx.xxx.xxx /29;};
     allow-query { localhost; xxx.xxx.xxx.xxx/29; };
};

I am assuming this will allow the new server to resolve correctly and 
allow it to reach out to the net to find domain names (so I can use yum 
update, ssh to it, etc)...and will use this for the KVM guests to 
resolve in the future too.

any help appreciated.. centos 6 by the way.