Wax is a free, nice little video editing and FX software. It handle multiple tracks of video and audio.
Here is a list of the features:
Leading video editing software from Adobe. This package is basically your all in one video editing station, with FX, timeline based editing, transitions, keying, DV and analogue video/audio capture and audio mixing all in the one software.
For a start you select project settings that include res, compression, FPS, audio quality, etc for your project (you can also selecta range of presets). Once you have created a project you can import clips/stills/audio into bins with thumbnails for easy access and oraganization.