Anyone got any experience with dashcams?

[Ady2009]

After suffering a number of road rage incidents on the road, it it time to get a dashcam and get these people prosecuted. I have been looking at the cheapy 1080p dashcams but they receive very mixed reviews. I have also been looking at the expensive ones but don't want anything that is going to make my car vulnerable to getting broken into. The most important thing for me is a good quality image from which you can read a number plate. I had thought about a second hand action camera as well.

Has anyone got any experience with these things?

 

[Ady2009]

Can road rage be experienced anywhere else?

In a car park too which isn't defined as being on the road but the lunatics still seem to lurk!