Not sure if they are any good, but a bit of a discount.
http://www.hughesdirect.co.uk/showproduct.php?cda=showproduct&pid=WHA-XARUS5000-BLACK&warrantyid
http://www.hughesdirect.co.uk/showproduct.php?cda=showproduct&pid=WHA-XARUS5000-BLACK&warrantyid