reinstall of Netsaint...should I use Nagios?

Hello,
 
I have used Netsaint for quite some time now but never with the database support option turned on.  Now I want to go ahead and use this option as it would be more scalable if I wanted to grab certain data that Netsaint produces.  I am running Netsaint 0.0.7 and it has worked great for me under Redhat.  The question I have now is that since I plan to "reinstall" Netsaint...should I stick with Netsaint or convert to Nagios?
 
I'm not looking for too much downtime so if there are a lot of configuration changes that have to be made to work with Nagios (all the commans, service checks and hosts), I might stick with Netsaint for the time being.
 
thanks,
 
jason