If your looking for someone who knows what there on about regarding Golfs, then below is a good contact.
I came across him as i was after a crankshaft sensor for my GTI, my car has trouble at the moment and i cant get it to him as it wont bloody move (as you will see in my thread in the garage forum) but he is continuing helping me solve the problem i have.
It seemed a very profesional set up with a few GTI's sitting out there he was working on and his prices seem fair.
Anyway hears the details:-
Volksline, Unit 3, Eastboro Way, Nuneaton, Warwickshire CV11 6QG
024 7637 2323