There don't seem to be any out there, but even when there were, they were $700. For that money, you could buy a new Canon G12-the current choice of UW point and shoot connoisseurs AND the Canon housing for it. ($469+$179). If you're enamored with your 4mp Nikon, keep using it topside, but you're probably better off buying a dedicated camera/housing combo that is current and readily available for underwater. Generally, they only make the housings for a year or two because the cameras go obsolete so quickly.