Nikon's D3S is an impressive update to the two-year-old D3, and is hailed as the best low-light camera ever. It has native ISO up to 12,800 (expandable to a jaw-dropping 102,400), and the pictures are actually of publishable quality at that full native sensitivity. At about $5,000, we'd expect it to be amazing, but it truly does have abilities never seen before, and sets the standard for top-end pro dSLRs to come. The design is sturdy but comfortable to hold, and includes features like HD video (only 720p, sadly), RAW image processing. This is one advanced piece of machinery.