I bought the same camera last May, and checked out various housing with Reef Photo in Ft Lauderdale, FL. They recommended the FIX housing, so that is what I bought. The only thing I don't like is that I can't open the housing with the tray attached - just a little too short, which is a PITA. I have to take the camera off the tray off to change the batteries. The next size tray is way too long, so I will live with it. I am not handy enough to make my own.
I bought the 60mm and 10-17 mm fisheye lenses for it. I love the wide angle, and the 60mm is good for fish portraits, but not for the really little stuff. I will be buying the 105mm. Also, for topside I bought the 18-200mm lens and it is the only one I use topside. Love it! A friend uses the stock lens that came with the camera - I think it was an 18-55, as his basic underwater lens with a dome port and loves it. I haven't tried it yet.
The camera is great. Hope you enjoy it.
Debbie