Here's the product detail for the GPS units I was comparing:
Cobra:
http://www.cobra.com/index.php?page=...ct_id=442&id=1
Garmin:
http://www.garmin.com/products/gpsmap378/index.jsp
The site says the Cobra 4000 is 799 retail. I got mine at Circuit City for $699 and then a $100 mail in rebate. It's also available at
circuitcity.com