😛 It sounds like you have done some work with it but I am not sure I agree with cow simile. Admittedly it's hard for me to convey a fresh perspective because I started playing with PowerShell ~3 years ago and have never looked back. If I never write another Windows batch or VBScript file again it will be too soon. That said, I only got serious about learning it and applying it in a structured way within the last year or so. I am reading this book now:

Learn Windows PowerShell 3 in a Month of Lunches by Don Jones and Jeffrey Hicks (aka Professor PowerShell

I am about 1/3 of the way through and it has already filled in many knowledge gaps left around by learning on my own and through repurposing bits of scripts I found on the net. The book focuses on using PowerShell to accomplish real tasks right away rather than treating it as a scripting language you have to learn about from end-to-end before you can do anything useful. The other great thing it does is teach you how to fish, and what I mean by that is it teaches you how to use the help system built into PowerShell which is pretty robust and user-friendly such that once you learn it you can move around and pickup new things quite easily.

The book does have a "system administrator" spin as that is its core audience but we can't kid ourselves, most DBAs have to wear that hat all too often so learning PowerShell through that lense is not a stretch at all. I am easily able to apply everything I have learned so far when using the SQL Server PowerShell provider.