Thanks for the responses guys I really appreceate it. I did know about hacking the Cannon's but last time I looked the hacks only worked with the G 9 and the G12 + but for some reason they skipped the G10 line. I'll take a look at that as well as do a bit more reading on the other cameras. Thanks for the links and the suggestions.
Photo taken this past week off the coast of Borneo 60 feet down no external flash: