Comet are having some kind of laptop price reduction today and lasts until next wednesday.
Lots of pretty good deals including:
ASUS X5DIJ-SX536V reduced by £220 to £379
ASUS X52F-EX486V reduced by £200 to £449
COMPAQ CQ56-101SA reduced by £280 (!!) to £299
TOSHIBA SAT C650-1CT reduced by £220 to £379
And a ton of other laptops all reduced by up to £280 and most savings are over £100.
Note sure if this is in store as well as online.
+ use Quidco for further 3% cashback