I've been very busy working up some how-to documents on using MRTG in a Windows environment to monitor server and network health. This has been a very challenging and time-consuming project, since it involves so many disparate technologies (MRTG, SNMP, WMI, VBScripting, RRDTool, etc). And like many things Open Source, the documentation is all over the place.
My goal is to come up with a solid how-to, similar to the one I recently did for OpenSSH. I should have that done in another week or so. In the meantime, check out some of these near-real-time performance metrics on the site here. There were done using just SNMP, but I have the scripts already written and tested to pull perfmon and WMI data from servers as well:
Performance Metrics Using MRTG
Stay tuned!
(UPDATE: The batch file I am using to copy the graphs to my web server's directory is not working as intended, so the graphs are not updating properly. Looks like another thing that I need to address in my article.)