Please include Nagios http://www.nagios.org/. It reached version 1.0 and is pretty fine. I'm using it widely for ca. two years now. Good starting point for RPM packages is here: ftp://development.origix.net/pub/SRPMS/ The address above is mentioned on Nagios's Web page. If you would like to run Nagios, you need check plugins too. See URL above for RPM. The good idea is to include package with logos too, see Nagios home page. I tweaked a little bit SPEC file to conform to other in RH 8.0. I'm not satisfied yet but it works now (version 1.0-2). You can find them here (primary): ftp://ftp.pslib.cz/pub/users/Milan.Kerslager/RedHat-8.0/RPMS/ or on fast daily mirror: ftp://ftp.linux.cz/pub/linux/people/milan_kerslager/RedHat-8.0/RPMS/
Probably not at this point; we haven't historically shipped this sort of thing with the base OS in the past.