On the 'did anyone say new lightsaber colors?' I posted a few days ago that Yoda's lightsabre was yellow, and since the day I saw TPM I said that Maces lightsabre was purple.
The bodypart thing will probably be his righthand (his left is chopped by Luke exposing electronics) just like Luke what will give an extra link
surely, if Anakin is supposed to fall into some type of lava pit, then the only part of his body worth saving is his head and perhaps his vital organs, (I assume that the force is controlled by your mental thoughts) therefore it would be possible for his body to be replaced with mechanical parts, however, if he does fall into a lava pit, how long before Palpatine or some other ally rescues him, i wouldn't have thought that you could last long in something as hot as lava even as the chosen one, perhaps he does a Luke thing i.e. the esb and calls out for help while burning to death?
isn't the lightsabre in the cane a bit tacky, bit to much lie batman and the Joker thing and James Bond with that big shotgun, if you believe what yoda says about the jedi only defending and not attacking, why would he need a lightsabre, could he just not levitate the enemies out of the way?
You are absolute right! It was his right hand (Vader is righthanded). If you go to an EU book you have there the conclusion that the right hand is still human.
I defenetly know that it is a lava pitt; when Hamill asked Lucas what happend to his father he said that he tumbled in a vulcano. This commes from the OFFICIAL site and that was in 1999. The question of Hamill was asked in 1977, when they shot the scene in OB1's house.