Is anyone using AVID media composer 4.0. I can get this software at a lower cost than any of the others so I was hoping someone could comment on it. I know its used by some pro studios and I'm curious if its going to be too complicated for someone as green as me. Also, if you do use it what kind of system are you running it on? I have a macbook w/ 4 gigs of RAM and I have a feeling I'm going to be just squeeking by. Thanks.