I finished Chapter 6 of Head First HTML with CSS & XHTML over the weekend, and I can definitely say I learned a lot about web standards and compliance.
It was interesting to use the W3C Markup Validation Service to check the code samples in the book, as well as my own sites (miba51, cloudymidnights, and urbanspelunkers) I wasn't surprised to find that all three of my sites had bugs, but I am still going to hold off correcting and updating my sites until I am done with book.
Since I am paying for hosting those sites, I might as well use them as part of my portfolio with cloudymidnights emphasizing accessibility, and urbandspelunkers to experiement with style.
I am now starting Chapter 7 and diving in to XHTML and hopefully in a couple more chapters I'll begin working with CSS. I wish I were making faster progress, but there are other priorities, and at least I am making progress on many fronts right now.
I scapped out 4 old PC hulks I had lying around, and I have two or three more to scrap out by the end of next weekend. My place is looking more organized than it has in years. Who knows, I may actually get some of my other projects off the ground. It's amazing what you can accomplish once you define and narrow your focus.