I got them in Trade Tyres, Guildford, Surrey on the Slyfield Industrial Estate, GU1 1RU.
I paid 100 plus VAT per corner, for tyres, fitting new valves and balancing.
I basically went in their with a list of all the prices I had got from Tyre-shopper and Black Circles, and said If you want to cut out the middle man, do you want to match these prices? I had a price of 121 for the Goodyears Eagle F1's and 138 for the Pirellis from Tyreshopper. He advised me against the Goodyears and then said he'd do the Pirellis for the same price! Bit his arm off!
Really good service as well, and they said they'd honour the price when I need the rears changed.