I've used Amiga Innovations before. It's a one man operation. He was operating from his house, which was not far from mine, in Perth. He is (was?) a friend of a close friend of mine.
He was very straight forward to deal with: honest, open, and no troubles. However, I have to say he really didn't show a lot of interest in customer service.
His range of products is ever decreasing, and his old (even second hand) product prices haven't ever dropped, to my knowledge. Mostly I think he is overpriced (no I'm not complaining, just a considered opinion).
I also asked him for a quote on some PC trouble shooting, as a technician, but he wanted to charge $120 per hour, in about 1996. Well, that certainly gave me motivation to go and learn some more computing skills of my own.
I wouldn't be too concerned about using only local dealers. Better to just get a good, and legitimate deal.