Heh, Luke's "tree" saber in ROTJ always amused me, I imagined him taking on swipe at Vader in their duel, and Vader being completely vaporised by it, with nothing left.
Actaully Angel, how the hell do you reduce the lightsaber like that?, I mean, I undestand how you change it to the new one, but when it's so big, how do you remove the light and keep the part of the scenery that it's blocking? Do you paste it in from an unobscured shot or whatnot?