I've decided on the A75 with Canon housing and should be ordering it sometime this week. I think this camera should work out well for me. I semi enjoyed the reefmaster but its focusing distance was very limiting for close-ups which were most of the pics I took. Give me any ideas on small extras I may want to order with it. I'm thinking of either 2- 256mb compact flash cards or one 512. Give me your thoughts. I think I could get plenty of pics with this much memory since all my dive trips so far have including 4 total dives and maybe 1 night dive on our own. The only reason I'm thinking two 256's is if one of them corrupts during a trip. That way I would still have some pics left. Any input is appreciated. Thanks in advance for the suggestions. Greg