The Experts Conference April 2011–My session
Dmitry has just posted the video of the session I did at the PowerShell deep dive @ TEC in April
http://dmitrysotnikov.wordpress.com/2011/09/14/video-richard-siddaway-wmi-gems-and-gotchas/
The session was entitled WMI: Hidden Gems and Gotchas
Links to the slides and demo scripts are also available on the post