This retails for £999.99 @ John Lewis, but you can get them to price match with EmpireDirect who are currently selling it for £734.99 + £25 Delivery. (Updated 20/03/2008)
This is possible as EmpireDirect have outlet stores.
In addition to the 5 Year Warranty, John Lewis will also refund the difference again, if you can find it cheaper within 28 days after purchasing it.
As Panasonic are going to be releasing their new models within the next month or two, more savings are likely to be had!
(EmpireDirect have already reduced their price by £50 during the past week alone)