[Steven Lake]

Well, my work with ebooks, at least the system I've developed through some heavy experimentation with my own books, is to use some kind of program (in my case a php script, or calibre depending on the need) to do the heavy lifting of initial conversion and book setup. The next step is to use Sigil to clean up and finalize the book. After that I simply use a text editor and winrar or ark to edit files inside the epub during the final tweaking process.