have you got £130 for a new tap? I'd have said installing a new valve would be far cheaper.. plumbase or any of those big bathroom stores should be able to point you in the right direction. Most taps have a standard size but it pays to check. Some highend products also come with quite long warranties..it's worth a check.
try here http://www.supaprice.co.uk/p/result.jsp?ga=uk9&q=valve+ceramic+disc or here
http://www.notjusttaps.co.uk/spares-valves-half-inch-quarter-turn.htm
take the old valve off and trot along to your local plumbing shop. btw the tap is still for sale at homebase