I am looking for a good gaming laptop that can play Modern Warfare 3 and Tanki Online without complications. I need to be able to do school activities on it also. I'd like it to be lightweight and fast. It can be used or refurbished. It would be nice if I could connect to wifi without an adapter and be able to hook up a controller to it. eBay, newegg, and amazon are good websites. If this is too high a demand for 400 just say. Resolution would be good above 720p. Video and streaming must be good.