Actually, the ones that initially gave me the quotes in the local area were the smaller established garages - then they decided I needed to have ordered the parts from them when I went round for fitting.
My work colleague's friend is a private garage, but specialises in Fiats. I'm going to take round the installation instructions from MiniMania and ask him to follow them. As a very experienced mechanic, I dare say that Mechanic Massimo will fair far better than "Sets the Car on Fire" Andrew.
Anyhoo, just today I realised that I'd lost one of my keys for my locking wheelnuts (I have three sets on, I'm a little bit paranoid). So I've ordered another key through the BMW dealer (they're about £4 or so) and will pick it up Saturday. So hopefully all the wheels should come off when required.
I'm really looking forward to it, I reckon I'll probably have them fitted on Monday the 23rd July. I have to try to fit it around my girlfriend's working schedule so that I can leave the car to get the job done while she gives me a lift to work, etc.
Well, I'll let you know how it goes... I reckon I'll do a full review once I get used to them.

It'll be a comparison between Mini One stock standard suspension vs. Mini One stock standard springs with Koni FSD dampers.
All the best,
Andrew.