c-19 is realeasing TEKcam in a few months. Designed as a cost effective deep filming system for Expeditions with replaceable SD Cards for Storage, it's tested to 330m, 640 x 480 VGA, and incorporates a very wide angle (160 degree). TEKcam is based on a modular system. Admittedly it doesn't have a monitor but it's self contained with no wires meaning no chance of entanglement, if you flood it it'll cost about £100 to replace the camera, oh and one more thing - it'll cost about £350.