This is now on my wish list.  The Fujifilm FinePix Z33WP.  It’s a 10 megapixel waterproof digital camera that is small enough to be put in with your travel sack.  I’ve read a lot of the reviews online and it seems the picture sharpness might need some work, but for underwater travel photography, there probably isn’t a better choice.  4 Colors to choose from and priced around $150.  My next snorkel trip this little guy will be with me.