Reddit reviews Nagios: System and Network Monitoring

I'm glad you found your answer. For complete (very) documentation on Nagios I suggest this book. It's what got me really started.

http://www.amazon.com/Nagios-Network-Monitoring-Wolfgang-Barth/dp/1593271794/ref=sr_1_fkmr0_1?s=books&ie=UTF8&qid=1345369768&sr=1-1-fkmr0&keywords=Nagios%3A+System+and+Network+Monitoring+3rd

this one but it's probably outdated by now.

TIL ZenOSS was a nicely packaged Cacti/Nagios. I've always gone with Nagios/Cacti combos I set up myself... before Zabbix. Still nice to know going forward. Thanks!

I also was given this book: Nagios: System and Network Monitoring and while we didn't go the Nagios route, it was very beneficial too.

Read this books:

Building a monitoring infrastructure with nagios

Nagios Network Monitoring