Randy Ingermanson writes the Advanced Fiction Writing e-zine http://us5.campaign-archive1.com/?u=bd398af5e14b804a37b7f273a&id=eb3bc8801d. He is the author of the Snowflake Method of defining the structure for a story.
In the latest version he documents his switch from Word to Scrivener and details a little of his workflow. He mentions that Scrivener’s output to ebook formats was the killer application that made him switch to Scrivener as his authoring environment.
Good Scrivener review and I think his e-zine is worth subscribing to also, especially since its free.