When they first came out in 03? I bought the A70's and the canon housing. I leak tested it in our pool, without the camera. First dive, it slowly filled with H20, found out it was a defective housing (only the lever that switches between camera and review leaked (if you held it one way firmly) Hard not to when diving in cold water with 5mm gloves or Dry gloves. Needless to say it ruined the camera. I had purchased the camera just weeks ago from Kits and their "expanded warranty" they replaced the camera, the Canon housing was replaced by canon (out of the box defective)
I strongly suggest purchasing the 'expanded'--not 'extended' warranty, read the fine print! Mine covered water damage (It said nothing as to how the water got to the camera!)
My next camera will likely be an A620 with a Ikelite case and Inon DX125 strobe, just waiting to find the treasure box on the bottom?
Tim