Yesterday I did a talk at the Dutch Information Worker User Group (DIWUG) about Practical Powershell for the SharePoint professional. As promised I am posting my slide deck as well as the scripts used.
I've put all the material in a zip file that you can download. I've added all the files that I used for the demo yesterday plus a few scripts that I didn't get a chance to run but were mentioned in the slides. Note that these are very 'demo' scripts and have lots of stuff hardcoded, no error handling, etc. The slide deck includes notes that should give you an idea of which commands I was running.
Hope this helps someone out!