hi guys. i have a c5050 and a housing, but i wanted to get a more portable camera. i have narrowed it down to the canon s400 or the casio ex-z3. i know the canon has an underwtaer housing but i couldnt seem to locate one for the casio. does anyone know if there are any plans to make one for the ex-z3, i would really rather have this one bc it is much more portable.