Originally posted by gbeaton Its probably cheaper to select your camera based on the housing manufacturer offerings.
+1 .... Olympus and Sony seem to do the best job of OEM designed and branded pressure rated housings for their cameras. In particular the P&S models - 40m maximum depth is typical. Olympus often includes an underwater scene mode for color correction. Sony may do the same, but I am not sure.
I have used two Olympus P&S cameras with camera specific Olympus housings. In both cases I had to order the housings from either Japan or China via eBay as Olympus USA doesn't distribute them (fools - every dive shop would carry them!). In both instances, the delivered cost to me was +/- US$100.