Don't get a Cobra. I know, i own one and i've seen them work. the higher model ones don't even work very well. all they're good for is to look flashy and provide other cool gadgets like compasses.

i'd say get the bel 980. it seems to be the best deal and it actually works. the escort would be next...valentine one if you have the money. i hear nothing but good things about it...except the price.