I have mountain lion. I will also be editing the videos on the computer and be uploading them to youtube. And I would like it to be at least 720p. I have been looking at this one- Hauppauge HD-PVR 2 Gaming Edition TV Tuners and Video Capture 1480 Black- Does it work for mac? Would it work with the hdmi cable in my xbox? Would I need to buy new software? I am truly confused. If you have answers or other suggestions please post I need help!