My wife is not a heavy speeder (usually goes about 10mph over the speed limit) but she does enjoy having a radar detector. She previously had a Cobra (that was below mediocre) and it broke not long ago, so it's time to replace.
As she only drives about 15 miles/day (outside of the 6-8 or so times per year that we travel 400 miles roundtrip to her parents), I'd prefer not to go with one of the higher-end Escorts or V1.
The two I've been looking at are the Whistler Pro-78 and the Beltronics Vector 955.
Radarbusters also has the Escort Passport 7500S for sale for under $200, but I don't know anything about that particular detector.