scribblemyname | Today We Learn...

Scribus: creates print-ready PDF files
http://www.scribus.net/canvas/Scribus

Calibre: converts e-books (don't like this one so well, doesn't edit)
http://calibre-ebook.com/

and

...drum roll please...

Sigil: edits and creates e-books
http://code.google.com/p/sigil/

:rubs hands in anticipation: Very, very excited.

......................UPDATE.....................

And horror of horrors, you have to use CSS to edit the font face. :headdesk: Tech really is not my color.