This demo shows some of the neat things you can do with PowerShell with regards to server administration. There are 10 demos you can run through ranging from simple queries for services to enumerating information in Active Directory. Some of the scripts use lists of computers, some prompt for a computername. Each script shows a different thing you can do with PowerShell to quickly create administration scripts.
Length: 12 minutes 28 seconds
You can also download the WMV here
There is also a good Introduction to Windows PowerShell Virtual Lab where you will learn to carry out system administration tasks as well as learn the capabilities of the Windows PowerShell console.
We also have the Windows PowerShell 2.0 CTP (Community Tech Preview) for those who want to try out the latest and greatest.