This is an excellent service, courtesy of DailyMotion from France. One of our dedicated Ghibli Freaks (check out his blog) shot a video of Ghibli's Art of Tales From Earthsea (Gedo Senki). This is really terrific for those of us living in the States, since this movie has yet to be released here on DVD.
I can't say that I liked this movie, but I would pick up the art book. Ghibli always does such a terrific job with these coffee-table books. It would really be terrific if Viz Media would publish the rest of the series here in the US. The Art of Ponyo was just released last week, and there's also Howl, Spirited Away, Mononoke (on the Miramax label and out-of-print), Porco Rosso, Kiki's Delivery Service, and Totoro.