<font color='#810541'>My advice is limited but maybe it will help you.
If you want to be bold, you could try the flexible housing out. If you loose your camera because of a leak - that will be a good excuse to upgrade!
2 MP really is a little shite now compared to what you can get for a reasonable price! Have you searched for any reviews on this housing? Sometimes you can find some good advice on the web.
I wouldn't take a 10m rated housing in the water with any camera I really wanted to keep! 30m rating is a minimum IMO.
I use a Sony DSC P1 - digital. 3.2 MP. with a housing that costs an extra 150 - 200 squid. I have taken this to 33m and it only had a rating of 30m! They do newer versions of this set up with up to 4 or higher MP cameras so check out the sony website or you local dealer for new models that come with marine pacs.
I'll post some of my pics on this site soon that I took with this camera and let you know when I do. So you can see some examples. I am very happy with it - and it is pretty good for macro.
Also, check out the Pentax digitals. They do a 4 MP one with marine housing unit for a reasonable price. This looks sweeeeeet!
If you have the money you could and like the Nikon range. You can get a Coolpix 5000. One of my dive buddies has this model with a housing and she loves it. (If you are interested I can find out what type of housing she has as I am not sure what it's called).
Hope this helps.
When my Sony cybershot dies... I am planning on getting a pentax with marine housing.
Lisa