Why not consider turning your eBook into a complete video training series?
This way you can create a whole new product, that has a higher perceived value.
You can either add that as an upsell or as a completely separate product.
You can offer the videos either online, or put them onto DVD and use a service like Kunaki.com to do all of the fulfillment for you.
You could even make your original ebook a "downsell" on the video course sales page by using an exit popup for people that don't buy.
Hope this helps,
Richard