Today(23-may-2011) at 3 .30 PM I saw around 50 XPS L702x are available starting from price £455(inc VAT+Delivery). These prices keep vary due to high demand, so you may not see the systems available for £455 after few hours(sold out). These are not appearing from main page where we can select XPS 17. But they are appearing when we go to all laptops and then search in the results. In the left hand side, select 17 inch and sort the price low-high at the top.
Cheapest found is £379.85 excl VAT. £455 inc VAT. Today Delivery is free.