I've completed my Windows Powershell V1 training, using Don Jones training from CBT Nuggets. I was very impressed with the way Don ran the course and explained everything in detail. He really is good at what he does.
If you've just run through Don's training and you're looking for notes from the course or you're looking to get started with Windows Powershell, my Express Guide will be a great reference.
Please Note: I can not guarantee the availability of this download. If you require the file and the link above doesn't work, leave a comment and I will email the file to you.