Toshiba are giving £50 cashback on various laptops, this one seemed a nice spec for the money. The only thing you might want to do is add another 1Gb of RAM (£13 from play) which is very easy. Better processor than others at this price and good size hard drive.
Toshiba Sat Pro A200SE-24R Core2Duo T5450(PSAE4E-047022EN). For more money off go through Quidco.