I have been hearing a lot about PowerShell these days and how it allows SharePoint Administrators to manage SharePoint outside of the conventional tools such as Central Administration and the powerful STSADM (command line) tool.
Here are some resources that I found online. They have great examples and show how to install and use PowerShell:
Windows Powershell Overview
Windows Powershell Scripting Resources
Windows Powershell Download Page
All PowerShell articles by Karine Bosch
SharePoint PowerShell for Beginners by Karine Bosch
Bill Baer's PowerShell page
More Power"Shell" to you!