I have the S90 which I plan to take snorkeling. I do not want a very bulky setup and will use 1 strobe (at least initially). I have read about the Canon, Ikelite and FIX housings, and would consider any of them if they offer a clear advantage over another for putting together an ideal package for snorkeling. I have a Olympus UFL-1strobe which I could use, but it is not very powerful. I have seen recommendations for the Inon S2000 and Ikelite AF-35 kit. What would make the most sense with each housing for snorkeling? Any recommendations? Thank you.