The sabers originally were so inconsistent. It was alright for movie made in '77, but I can't believe they didn't redo those in the Special Editions...
One thing I haven't seen mentioned (although I admittedly haven't read ALL of the last 10 pages or so) that didn't necessarily need to be done and that I never would have thought to do, but absolutely LOVED when I saw it was the little trail the escape pod leaves as it enters Tatooine's atmosphere. It's the little touches like that which truly make this edit remarkable.