By the way have you tested a quality and how to improve the quality of video? Also have you got any small experiences with programs like Sony Vegas or any from Adobe? I know how you feel ( I was same ) "Gonna make the best vid of legions and upload it on Youtube." But when there came the time to edit videos, add some effects etc etc I failed. Its nice to have a lot ideas in the head but when you gonna improve them ( edit, etc. ) everything is hard. You wrote you havent got experiences with programs for editing etc.
First I would learn with some program and then start to think about ideas like this. Well you will also learn with program when you will edit your videos from Legions but effects etc ( when you are rookie ) will suck.

Because you want to make the best movie.
Yeah yeah sorry for the great inglis!