This magnifies the effective focal length of the lens. A 200mm lens on an APS-C camera will capture an image roughly equal to a 300mm telephoto on a full-frame dSLR.
Dynamic range refers to the ability of a camera to capture detail in both the shadows and the highlights. Manufacturers use different methods of processing images inside the camera, so it is difficult to compare dynamic range between brands. Overall, however, smaller sensors capture less dynamic range. This means prints from the full-frame dSLR have better tonal range.
Most professional DSLR manufacturers do not feature built-in image stabilization in their camera bodies, opting instead for stabilized lenses. This is because lens stabilization has been around longer, performs better in low light and typically works more effectively at longer focal lengths.