Has anyone played around with a Nagios wrapper for xymon?

I found part of what I want : - xynagios, which I grabbed out of the
"hobbit-plugins" package on the  debian source boards (we are running RHEL)
This plugin seems to just be for the client side of the equation but I
might grab some of the code.

It's one of those things that looks extremely simple - nagios plugins run
at the command line and return an integer value and a pile of text and some
data - but the devil is probably in the details . I'm going to cobble
something up for proof of concept. (need to decide whether I need to
re-parse the command line, or whether I want to)