Check out this new product from Vexilar. http://vexilar.com/ I think this is a great idea to combine a flasher with an underwater camera. If you already own a Vexilar, you can upgrade to the camera/sonar system. I really like to fact that the depth, direction and water temperature are all displayed. Only comes with 80' of cable.
The only thing I am not sure of is which one of the addicted to ice fishing for lake trout fisherman that I fish with will purchase this first?