[bitfolk] nagios reporting

Seeing as there's a few people on the list who know/like nagios I thought I'd ask here -- can anyone recommend any plugins for nagios reporting? I've been asked to present availability figures for different services and I'd like to have them either: - automatically emailed - created as hardcoded links, eg /availability_report_last_7_days_exchange, etc I've looked at nagios exchange, I can see some tools that do things like create pdfs, but need the whole of webkit installed (would ideally like to run it on the server). Not looking for anything too fancy, just some way of showing business users availability without getting them to click through the site. Any suggestions? thanks, Casper.