Down by the arches at the racecourse theres a garage called John Langham Motors, i've dealt with them for years as has my whole family and they've always been 100% spot on. Never failed my car on an MOT, In my experience if they ever find something stupid like a faulty bulb they'll change it instead of failing it and making you get a retest.
Phone numbers 01244311396.
Guy who owns it is a top bloke, drives a 600bhp supercharged VXR8, beast!
Not sure if they're the cheapest around for MOTs but i'd rather pay an extra £5 and know its not going to fail on something stupid tbh.