Out of date, but I paid £1000 all in for a new clutch in late 2002. In retrospect I was sold something I didn't need. A clutch should last 30,000 miles comfortably depending upon driving style...
Verdi recently replaced a clutch on my mates Maser, they changed the clutch centre plate only for £1031.00 inclusive of VAT. Apparently thats what 'normally' goes wrong.