mrpiesxrayeyes - try BSD in Eye - 01733 223377.
They are race bike engineers and ALL the bike mags use them, including PB, MCN, Ride and even Superbikes come all the way up from London!
I intend to use them for my next major service due in 2k as they did such a great job on my last zx6.
They are truly superb. The attention to detail is just awesome. For example, Mark Brewin, the boss, even strips, cleans and copper greases your pillion footpegs and locks! He set my carbs and can up too, soooo smooth.
Prices are about same as Taz and Kwaka Peterborough but the quality is in a different league. Need to book WELL in advance though as their reputation gets around they get busier and busier.