Server Monitor Widget allows you to monitor any server running PHPsysinfo (http://phpsysinfo.sourceforge.net/). PHPsysinfo is very easy to install and is free!
Wanted to put up a quick update... The Multi version is still in the works. We are very close and should have it updated shortly. Given we still have the approval process time as well.
Worked on getting this working for over an hour until I discovered the main widget bar doesn't like to automatically update itself but instead requires you to minimize it and then reopen it to pull new information (which defeats the purpose of having the bar).
I have tested this using both versions of phpsysinfo and am currently using the 3.0
version. Also the docked icon showing memory useage(?) displays : NaN%NaN?
Otherwise if everything worked properly I'd say this is rather nice for system admins.