Cheap gaming/everyday laptop suggestions?

I need a new laptop with the capability to play games like garrys mod, minecraft and the sims - as some examples. My budget is around £400 and I need it to run smoothly and not overheat.

Can anyone suggest any laptops?

Alienware laptop

I have a HP pavilion touchsmart 15 notebook and it minecraft runs at 60 FPS. It will probably be over your budget but its amazing have a look at it