I started with a Sony F707 5.2MP for all the adjustability, but after diving with the Ikelight housing for 2 years (now nicknamed "my breadbox") I decided to move down in size, up in resolution, and increase my portability.
I picked up a Sony P-200 for the travel portability, still used Memory sticks, and Ikelight made a smaller housing for it.
I hope soon to go on my first dive with the P-200 rig attached to a DS-50 and wireless strobe relay.
What manual settings should I start with F/WB/shutter, etc? Say on a warm water 50ft dive? I know things need to be adjusted depending on your subject...but I always got washed out colors/incorrect TTL exposure or hotspots with my F707 rig.