I have been spending the last few hours working with my Nagios core installation; Getting it properly managed.
All I see is bash right now.
The included documentation with Nagios is great- but they do need something in there explaining the power of templates a little better.
So far I have all my servers hooked up and working. I have been running with Nagios for a while now, but only in a quasi-lab environment where I had only a few devices in touch with the installation.
I have cleaned up all my .cfg files and made myself intimately familiar with how Nagios runs its course.
So far I have really only run into one issue- it looks like I am missing a few libraries. They have an explanation here: FAQ ID F0055 explaining the resolution.