Picked up a TG-6 and housing not to long ago as an entry into underwater photography and video. Havent had a chance to use it yet but I understand that for shallow water, high visibilty macro shooting, the native flash is good enough for starters. Is that correct? If want to expand my options for photography (and would like to get some video clips too with this camera), am I better off starting with a video light or two, or going for stobes? I understand that I will need strobes at least if I go for wide angle shots, but for now I will only be using the camera's lens, no adapters or additonal lens. I'm looking to not break the bank.