Got nearly $7,000 in spare change and a lust for magnesium-bodied digital rangefinder cameras? Then we've got the solution to your itch, dear friend, as Leica has just let the M9 out to dance with credit cards in the courting ritual colloquially known as a pre-order. Claimed as the world's smallest full frame digital shooter, the latest Leica sports an 18 megapixel sensor, a new cover glass that eliminates the need for IR filters, dual image processors, and a 2.5-inch LCD