Blackvue DR650GW on sale in the fathers day catalogue at Auto One for $489. Normally sells for $549 but can be found for as low as $519 online.
Ain't a big discount but the pricing on these things are pretty tight and this is the cheapest I've found them.
This is more like a CCTV setup for your car. Those serious about dash cams would know the popularity of Blackvue.
– Full HD 1080P (front), 720P HD (rear)
– Apple & Windows Compatibility
– Smartphone APP (connect to iPhone or Android)
– All new Discrete Black Design
– Up to 64GB SD Compatible (16GB included)
Optional parking mode
Full specs here. http://blackvue.com/en/contents/sub1.asp?idx=26