Originally Posted by kenyee
Waterproof housings for SLRs cost on the order or $2K.
Best alternative I know of used to be a Fuji F30 (best low-light P&S) w/ the $150 Fuji housing which is pretty well built...
Aquapak make semi-flexible housings for mch leshan that... 120$ usually. I'll be getting one in the near future, I will post a review of it here.
Their housings are for surface diving (15 feet, I think) but for many users it's enough.