I bought the Vuescape 5 megapixel digital camcorder from Tiger Direct for $40.
Below is a short video of me driving out of a parking lot. All files are saved in AVI format on a removable SD card and this video is about 19 mb in size.
I mounted the camcorder in my car using the Panavise 809 CCTV from Amazon ($18).
Here is the video: http://www.youtube.com/watch?v=d3zlhMqIF-8
I like that I can upload the video files directly to the internet without having to change the format. The quality isn’t great but for $40, I can live with it.