Basic Problems

Hey, it's SeattleBrick here!
I'm new to this whole thing, so I have a couple uestions that maybe some more experienced brickfilmers could answer.

Question 1:
If I have a very reflective new piece, say, a snowtrooper, how do I position the lighting so there won't be any glare?

Question 2:
How do I make the quality of the movie great, like the one film about the Grim Reaper shopping, with only a Nikon D90 camera?

Thanks!