Great job for a (first cast?)!
Some notes:
I think you caught all the epic shots from last nights scrim so good job.
Not sure what the other commentator was saying, but as Square said maybe some more talk about potential ideas that the teams may utilize based on their mech choices during the downtime.
I've heard of other casters using SKYPE together and recording that sound not sure how to set it up but maybe that will get you in the right direction.
By the third movie you had it toned right, but just make sure the music is more in the background.
Higher res for youtube if possible. I can live with 480 but the game is so stunning i think it deserves 720 at least!

That was a lot of fun to watch again.