

ITS THE Samsung RF511 Core i5 2450M NP-RF511-A03DX with a 2GB (1GB dedicated) NVIDIA GeForce GT540M (Optimus)
The OP is in the UK, imports tax is about 25%, and then he has to pay for overseas delivery, so this site is only really useful for American users.600$-800$ gaming laptops:
http/www.gaminglaptopsjunky.com/gaming-laptops-under-800/