If you have some time and don't know about this yet, please join us at Microsoft in Cape Town at 6:00 PM where Nicolas Blank (http://blankmanblog.spaces.live.com/), our Exchange MVP will be talking about Powershell.
I will be joining him on stage togther with Daniel Van Wyk. I will chat about how you can use C# in Powershell and how you can extend Powershell to work with SharePoint. Rock on!!