I have one of these:
http://www.amazon.com/Cobra-75WXST-Weatherband-CB-Radio/dp/B00005N5WW/
The great thing is that it takes up almost no dash space, and is relatively easy to install, and seems to work fine. The key to perforance is the ANTENNA. I would rather have a cheap radio with a great antenna than the other way around.


Of course, I had to get a tiny CB, becuase my car also has one of these taking up space:
http://www.gigaparts.com/parts/gpcpa/original/zic-2200h.jpg
I can talk about sixty miles with this thing using 65 watts of power. Through a repeater, I can cover most of the state of Colorado. Highly recommended.