At my old sch we all had iPads which was great for being able to walk round the classroom and project kids work on the board automatically. It was difficult in that it didn't have a stand but otherwise fantastic as could do real time videos too. I'm looking for something similar but just the camera (which can focus and clearly show writing) and live videoing. Obviously I need it to be cheapish and wireless. Any ideas?? A camera on the end of a smart board clicker thing would be perfect, do they exist?? Any help/advice appreciated!