You could definately look at the Dell Inspiron i7559. Its supposed to be a beast of a laptop with enough power to run GW2 pretty comfortably. Im thinking of getting it. Its has up to date graphics card and alot of memory space aswell. Also i dont think you can get a better budget Gaming laptop then this since its only at a mere £800 , and for the specs you are getting, phew! thats a bargain!! Also if you are going for something less pricy, the MSI GL62 is also a good choice