i have just got back from Sharm after doing a week of snorkelling with my fujifilm finepix xp50 series and it turns out that the 5m allowance of depth does not like going nearer to 12m. the camera has decided to pack in and will now not work what so ever. i have been looking at a case for my SLR camera which i have which is a sony alpha 290 but there does not seem to be a specific case for it to go underwater and all the others look like plastic bags. i am willing to sell this camera for one that is more suited to one that can fit an underwater housing. but what is a decent SLR camera thats not too expensive that is compatible with a housing. ?