Nice and interesting article, really need to read that Brackett draft, only read parts of it yet.
Nellith... like that name, when I think of what could've been, I still have a very hard time to visualize sequels with a sister as a Jedi Knight and it being good, call me odd but the whole twin story concept have always sounded a little bit corny to me, but I guess it all depends on the execution of it, I definitely think it would've been far better than what we got. That Lucas made Leia his sister in Jedi is one of the most stupid story decisions he ever made.
About your site, I can understand that you would like to make a re-design of it to make things more exciting as it looks kind of plain now, but I actually like it in a way, gives a serious impression IMO.