Hi Utterfilth (love the name) -
If you're willing to try a book, maybe CSS-The Missing Manual by David Sawyer McFarland would work for you. He has you build a sample website starting w basic html and finishing with some advanced css. He has files for the site you can download (graphics etc...) and also gives the urls for the finished pages so you can see them live on-line and compare your work. Might be a good compromise if you don't find an on-line solution.