Hi Piet, sorry for the late reply. We bought a GoPro 3 from a guy (Jaque ?) who used to work from Clifton Hill but I believe he has now moved to the Heritage Market. The boys now have Gopros 1,2 and 3 and all get nice footage spearfishing and off the jetski. I think it was around R3000.00Plugger.
Give me a shout and I will see what I can do for U.
Got a contact that sells them in our area - Hillcrest.
Piet