I wanted to mention this ground wire issue, I did it anyway, but I know Textbook mentions it in his vid tutorial, but he is in the States where, at least they did when i lived there, they use 110v ac 2 pin plugs, therefore they have no earth, we in the uk use 230v ac 3 pin, earthed, so the PC is Earthed and so is the xbox 360. So if there was a problem they are automatically earthed through our plugs.