Need help creating a video collage. Any info?

I am creating a collage of E3 videos. I've used Windows Movie Maker 2.6 and AVS video editor so far and liking both but can't get what I want out of either. Movie maker has the effects I want and AVS has the ability to edit videos by seconds not chunks like movie maker. Are there any programs that will allow me to do all of those? All I really want out of movie maker is the old movie projector look where its black and white and looks bit scrambled. AVS doesnt have that effect from what I've seen. Any ideas or help would be much appreciated.