Can't remember the name but there's one out there actually that works pretty good "for the moment". Soon or later cops find the way to scramble these radars.
Valentine 1 gets the best ratings in all the car mags. But it also costs a fortune. I have a cheap ass Whistler that works OK. I get a lot of false alarms with it though.
if you can afford it, get the valentine 1. If you dont want to drop that much on a detector, then get the Beltronics B-980 I've got that unit in my truck and its saved my ass a BUNCH of times!