This is just a book ad. Still, it is very much worth your time.
I've seen the book, which focuses on Mepis GNU/Linux, which is what I'm using as I type this on my laptop. I think it's a decent "get started" tutorial, especially at the price they're asking.
For those of you who have wanted to start using Linux, whether for fun or to explore an alternative way of personal computing, this is the way to go about it. The Mepis CD is a "live" cd, meaning you can run the OS without doing an installation. Should you wish to install Mepis, that operation is available by clicking on a desktop icon. It's nearly that easy, too.
Ease of installation is not important to me. I've installed Linux enough that I can get nearly any distribution to work without pulling out any of my rapidly thinning hair. I use Mepis because I like it and it serves all my needs. So, in my opinion, you're getting the best of both worlds with Mepis.
Give this one a good look, and remember that if you decide to take the plunge, those of us in the #ICUG chat on the show server will be happy to try helping you over any humps you encounter.