Photography Gear

Under water photography gear?
I want to bring my canon 40D under water with me diving. I want it to be under 2000 dollars. I have a canon 70-200mm F/4L and a 28-135mm lens. If i can use one of those lenses i would be great, but if i cant put it in with the 2000 dollar range. I want to now the body and lens ports. And may be a flash if it is needed. I a new to under water photography so if there is any thing else please put it on here.
I have the same problem. I'd like to be able to photograph my brother surfing.
I was researching and didn't find much, but I came across this ridiculous thing.
http://www.letsgodigital.org/en/18373/canon-eos-40d-underwater-housing/
Chase Jarvis TECH: Packing Photography Gear (Basic)