If you're looking for a good gaming laptop, I can recommend the Dell XPS 15 (
http://www.dell.com/uk/business/p/xp...~ck=dellSearch). It's quite expensive, but it has both a high power and low power graphics card, so that when you're plugged in (or only need about 2 hours of battery life) you can use a good nVidia card, but when you want good battery life you can use the low power and get about 5 hours.