This Laptop has more RAM, better CPU (architecture, not pure clock speed), More storage, and most importantly DISCRETE GRAPHICS. It is not an incredible card, but can PLAY CRISIS (on low details at ~32FPS) It is a rebadged 9600m GT basically.
The shops I have put forward are UK only. I noticed the OP was using UK £'s so confined my search there. I also happen to live in the UK, despite my screen name (I am american though).
If you want me to find you a good deal on a laptop just give me some details with regards to budget and usage expectations. Try and keep it realistic. I will look for the best deal in your budget.
As for your question, check the Newegg link, they are a USA retailer, the model number I refered to is almost identical to the laptop I recommended here. You can always try to google that model and see if you can get a good deal on it.