I've only identified this DVD for you. I know nothing about the content...can't be too good as it refers to a "movie mode" and "narration over stills mode"...
Amazon.com: Pentax K100D Made Easy (Tutorial DVD): Books: Elite Video
The Magic Lantern book is slightly better than the manual, if only because it was written by a native-English speaker, and it has some fairly useful reference material. The best part may be the black and white photos (all of them are) illustrating...white balance...
