In reply to wainright:
Where were they manufactured?
If manufactured in the EU just 20% UK VAT, plus a handling fee for someone to clear then through customs on your behalf.
If manufactured outside the EU you would also have duty (maybe 16% ?), and then UK VAT is charged on top of the duty.
(Rate of duty depends on exactly how they are classified as goods - if buying direct from the manufacturer they should be able to advise on the correct code)
Post edited at 12:31