Yup,
It is indeed St James (Brian McMahon). They run 4 day courses on minor scope repairs, which are very useful.
Unfortunately, if you cannot source the parts from Keymed you don't really get off the ground. Very few people have made inroads into getting such support from Keymed. St James were successful because they were able dangle a big carrot a few years back - the complete equipping of an endoscopy unit (£4 million I think?), so they had Keymeds complete attention!
Still I would be keen to know if any other biomed dept has been successful - particularly if they did'nt have top weild a stick!!