Where can I find a system/server status script?

I'm not looking for something like PhpSysInfo (http://phpsysinfo.sourceforge.net/phpsysinfo/) but rather something that lists each server and a simple up/down icon for http, ssl, bind, mail etc.

Thanks

I am working on a php/Mysql based on right now. Give me a little while and I will post a link.

Here is what I am working on.

It allows you to monitor an unlimited number of servers and an unlimited number of services per server. You enter server names in to a database, and you enter service names and port numbers. It produces a tabled out put with images showing up or down status. It also allows you to enter announcements into the database that are date stamped. It is fully templated. Not as nice of a template system as vbulletin, but it works, so if you don't want the announcements, just take them out of the template.

It polls each service 3 times before declaring it down. I have the frontend done. I need to write the backend admin panel. I should have it completed early next week.

Oh, and it will be GPL'd, i.e. free and open source.

Marty,

Sounds great :)
Just what I was looking for, I can't wait to try it.