Matt did mine and did a top job, but he's too far if you're in scotland.
Have a look at RS tuning, I think they're in leeds. Might still be a bit far for you though?
The only advice I would give, is make sure you get a before and after rolling road print out to prove you have some good gains. Expect about 5bhp peak gain, its not noticable but the power delivery is much better and cold start is much better too