DS6 sounds similar. He will write books, or take notes for future books. Could you perhaps put all of the note cards together (once she's done) to make a rough draft for her, so she feels some accomplishment? Could she write a blog about the topic? My son's new obsession is a blog. He doesn't have to type much, just a little bit a day, and it seems to satisfy this need at the moment.

There is also speech to text software so down the road perhaps that would work?

http://www.my-little-poppies.com