Thanks for posting these! Beautiful. I have the same camera/housing/strobe setup and am looking forward to trying it out in tropical waters. I've only used it here in Vancouver, but am pleased with the results so far.
http://picasaweb.google.com/roncasual/20100620DivingAnsellPointBC#I've been to Cozumel a couple of times, and your photos bring back memories both above and below the waves. Kinta was our favourite restaurant.