Pixmania are doing the Blue NC10 netbook for £283 . Thats one of the cheapest around and you can get 4% off directly from them and an addition 4.5% off from topcash. so it costs you around the £270 mark.
In addition you can get more discount especially if you want their 3 year warranty , which is chespest i've seen. if you are buying more its better to get their VIP card for the extra discount.
Hurry 4% ends Thursday the 3rd.
Also do not be tempted by the cheaper ones sold by Comet & Argos & Voda they have the cheaper 3 cell , 4 hour battery (KA06UK) , you need to look for the 6 cell 8 hour battery . The 6 cell batteries alone cost over £100.00