A great 3rd party set of cmdlets is available from powergadgets.com. Out-chart, out-gauge, and out-map (and some others like invoke-sql, invoke-webservice, and send-mail) are very useful graphical cmdlets.
They have a great support forum (where I use the name "fedrac"). I've always been provided with great support from them.
I've mostly played around with out-map and like it a lot for mapping data to a map.
I might share some of my code after the Microsoft Windows Powershell contest is over this week.
Support forum: http://powergadgets.com/csPg/forums/default.aspx