Just wanted to say I went for the MSI Ghost Pro (4710, 870m, 16gb, 1tb + 256) and it is a lovely piece of kit. Very fast. Have Watch Dogs running on Ultra. Very light and portable. Gets a little warm, but with the desk cooling stand it the GPU hits about 85c after an hour of intense gaming. In normal desktop mode, the fans aren't even noticable. Plus boots up in about 10 seconds.