Oh, and heres a little mockup clip i made a while back, Vader retrieves his lightsaber...
http://www.youtube.com/watch?v=AguISScl4jY
(Ignore the sound effect at the end where he ignites it again, i meant to take that out, as its supposed to be lit the whole time.) Also, ignore the slight wobbly blade, the way I made it was not using after effects, I drew each frame individually in photoshop, so its a bit wobbly.)