humanracer said:
This will probably not be news for most for you but I found it a really interesting read
http://robwrite.hubpages.com/hub/The-Original-Conception-of-the-Star-Wars-Trilogy
The Luke/Leia siblings is the one negative I will always feel towards the OT. It would have been interesting if Lucas would have just let 'the other' plot point hanging there all these years and now we would actually meet Luke's long lost sister in the upcoming ST.