JustDeals via eBay offers the Sportsman 5-Megapixel Underwater Digital Camera for $24.99. With free shipping, that's the lowest total price we could find by $34, although we saw it for $7 less two weeks ago (since expired). It's waterproof to 10 feet when inside the included case and features a 1.5" LCD, movie mode, SD card slot, USB 2.0 connectivity, and more.