[via Tony Bierman]
If you aren't hip to PowerShell, you should be. For those of you that don't get it, my elevator speech goes like: it's extensible command prompt where all the output are objects that I can pipe to command after command with full access to the .NET Framework.
One really cool use of PowerShell is in scripting your development cycle. You know you still have some of those old skool batch files laying around. Tony just put a post up showing some of the scripts he uses in the build process of a commercial SharePoint add-on product.