My husband has just purchased the newest camera in Canon's lineup of professional cameras, the 5D Mark II DSLR camera. This camera is great. It is full frame, has 21 megapixels, 4 Digit CMOS processor, 3" LCD window for viewing (with 920, 000 dots of resolution), and live view capability. This camera also has the ability to take video at 1080p high definition resolution. It is the first DSLR camera in Canon's lineup with that capability. The camera has a magnesium body and is sturdy to hold. It does have a little bit of weight to it. It is somewhat weather resistant, but not waterproof.
This camera takes crystal clear photos with vivid, true colors. It is easy to use if you are familiar with DSLR cameras, but it is a professional camera. An advanced amateur would probably be able to use it once he or she would get familiar with the workings of the camera.
My husband bought this camera in a kit which included a Canon 24-105mm L f/4 lens. It is expensive, but it is well worth the price if this is the type of camera you are looking for.