Here are a couple of shots of my camera equipment I use underwater, I have two housings for the Nikon D200 a Sea & Sea and a Titan shown here. The Titan has a greater depth rating. I also have a large glass port for the Nikon 10.5 fisheye lens and two Inon strobes with a focus light.
The equipment is heavy out of the water and great in the water.
Camera set up 2 by nicolas.terry, on Flickr
Camera set up by nicolas.terry, on Flickr