Have you checked out UrtheCast yet? If not, you really need to take a few minutes and familiarize yourself with this service. UrtheCast is doing full-color HD videos of Earth recorded directly from the ISS (International Space Station).
The new camera system, which UrtheCast calls ‘Iris’, is able to zoom in on specific regions of Earth as the ISS passes over. It has already captured many stunning images which you can see in their Gallery.