Although the S&S cameras will do a good job there are other options that offer more bang for the buck. I've rented the DX3000 and the DX5000 cameras and taken some very nice photos with both of them.
Take with a S&S DX5000 and an 18mm WA lens.
My biggest complaint with both cameras was that they ate batteries like candy. From what's been said above it doesn't appear to be any different with their 750 and 8000 cameras which is a shame. I opted for a Canon A620 with the WDC90 housing. Cost was $395 for both of them delivered. (The camera came through PC Connection and has full U.S. warranty.) The only thing I'm disappointed about is that Canon has dropped RAW from their consumer cameras. You need to go up to the pro-sumer grade to get that now. However it still does a great job for the money.
In testing a set of 2700 mAh NiMh batteries I took over 500 flash photos using various settings trying to wear them down as quickly as possible before I gave up. This is impostant to me because I really don't want to be opening the housing, and even more importantly, the camera, while on a dive boat. I like to prep my camera at home in a controlled (dry, air conditioned) environment where I can take my time to seal and test it properly. Then it stays that way until it's back home again.
I do like the S&S flash units like their YS25. Unfortunately for $425 + the mounting arm and hardware, it'll have to wait until next years' toy budget rolls around before I buy my own. Until then I'll just rent them.
Basically put, S&S cameras are ok, but I think you can get a lot more for your money with a little shopping around.