Look at the DELL outlet store, cant fault my DELL Studio laptop that I currently have... in a few years it's time to change anyway so no need to go mental on a high spec one... think 'consumables' ! Think you guys in the UK can use DELL Ebay, let me have a gander... 
  
Gander finished: They must have closed that shop down, used to be called : dellfactory (seller)  
  
So I'd go for the outlet instead: http://outlet.euro.dell.com/topics/glob ... INSP&s=dfh 
  
They got an INSPIRON/STUDIO XPS 1640 - 700£ !!!   
  
IMO You can't go wrong... I'm not saying these lappies will last a lifetime ... they won't and they aren't meant to either