Nice glad to see you've moved to out of the stone age that is Windows Movie Maker
I would agree with nBurn on a lot of the stuff about camera movements. This game can be hard to get smooth shots IMO the best way to do it is either to lower you mouse DPI if it has that setting, or just lower your in game sensitivity when your planning on filming. That way you have more room to make smooth moves. Also I find cross fades or dips to black/white to work very well with softer slower videos such as this one. Normally I would stick to hard cut, but in this case some good fades could really help keep the videos more natural, slower look going. I like that you used a lot of movement in this video too. I don't agree with nBUrn that the movement took away form the feel, I just think that you maybe need to slow down the movement and get rid of the jerkiness. You want everything to fit in, and with the slower music and theme, the fast pans and strafes kinda seem out of place. They work great in your more action oriented video though.
Hope this helps!
Also how does the new program compare to WMM?