I have that same R2 too but the battery went dead. LOL
I am afraid mine will be dead soon too, he's on my desk so I play with him a lot lol.
R2 can be lighted on. Nice little one!!
I have that same Stormtrooper. The R2 I have is from the Saga Legends line and looks identical. He lights up and makes a whole bunch of noises. He's not even a week old! I'll be taking pictures of my new set up soon(probably tonight). Figured I'd comment, and let you know you're doing a great job. Maybe we could trade links?