I'm looking for a very basic digital camera to use underwater. I can't stand not being able to take pictures everywhere I go, but I'm on a very tight budget at the moment, and don't want to spend much more than $100 on an underwater set-up (just a camera, plus housing if necessary; I'm not looking to get a strobe light or any other accessories). I've been looking at the Pixtreme PX2 but can't find many reviews of it. Does anyone have any insights about this model, or any others in that price range? Thanks!