Can some one recommedning a video editing software to make a short video but from multiple sources, AVI, AVCHd as well still photo,s.

I want to overly the video with music but at certain points want to retain the video audio and than resume the music . is this possiable?

finally it needs to be easy to use as not one to read the manual cover to cover.

I would also like to be able to focus on a still photo and than pan out.

Thanks