Just wanted to post a link over to my publisher's website. BradyGames has made PDF versions of many of their most recent guidebooks available for purchase on their website. As you would guess, the e-version of the guide is at a reduced price and doesn't necessitate a trip to the store. You can download the full version for $9.99 on their website's bookstore page.
Here's the direct Link. Or just head to www.bradygames.com