I found a great plug-in for ms word to create e-books from word documents.
I also have a link to a website that has some good, FREE copies of the Dune Series, Lord of the Rings series, and the Harry Potter series, just to name a few. The books are in text format, just open them, copy and paste into word and then use the plug- in to create your books.
Here is the link for the plug-in:
http://www.microsoft.com/reader/downloads/rmr.asp
Here is the link for the website:
http://idej.org/knihy/