I currently own a Canon 7D and I'm not overly impressed with the image quality. I've got a mate who has a Nikon and found it better than the Canon 7D he had previously. I'm looking to possibly replace my Canon with the Nikon D300s, but I'm worried about the impact the change in sensor size would have. I'm an enthusiast and the picture qualitiesty is my number 1. Can you help please? Not sure what to do.