I am working on updated documentation for our v4 MP (releasing this month) which will show all running Rules and Monitors.
I will post all this info here ASAP (early next week)
Meantime here is a list of the Monitors for performance metrics -
memoryCtl (balloon driver)
guestOS disk %used
Additional to the Monitors, many more metrics are collected for graphing/reporting.
And additional to the performance Monitors, we are watching for ~150 specific Events from VC on Host connection status, Cluster config, Licensing, VMotion etc etc.
You are correct - the full event list can be seen here - http://nworks.com/vmware/overview/data/vc2Events.xml
And the full Metrics list can be seen here - http://nworks.com/vmware/metrics/dictionary.html
Hope the above helps! Let me know if you have any queries....and I will post the full Rules+Monitors list next week.