Laptop Help

Basically i have a budget of between £400-£600 to buy a laptop for university. I'm not too bothered about size or weight. The most important things is a good graphics card or at least a capable graphics card. The best i've found so far:

http://www.asuslaptop.co.uk/proddetail.php?prod=Asus_Laptop_A6VM-Q061H

Any help would be much appreciated.