Laptops available in the UK....
HP Pavilion dv9560ea Notebook PC (GT432EA) £800 incl vat
HP Pavilion dv6680ea Notebook PC (GZ933EA) £899 incl vat
A bit less expensive..... but should be able to play WOW
InspironTM 1520 £389 incl vat & shipping
InspironTM 1720 £489 incl vat & shipping
I reccomend that you upgrade any computer to 2Gb of memory, Acer UK should also have similar laptops with the 8400M/8600M in similar price ranges.