Would it be worth starting a wiki page as suggested? Would we be able to have one and host it here? This would save us the problem of someone starting their own list and then losing interest or dissapearing.

Off hand, some things I have I didn't see scanning through the list:
Episode 3 newspaper 2DVD set, has some small docs and trailers on it - have to dig it out
ROTJ SE ending workprint footage
The Phandom Menace - DVD released documentary about SW fans around the time of EP1's release