It's good to call around to different clinics and ask if they do video analysis of running. If you can find a clinic that does that, you'll likely find a PT that is into the whole running thing. It's also good to ask a sports med doc or podiatrist. There is also a sports specialty certification here in the States but I can't remember what the designation is (the letters behind the name). Do you know Knott? I could google it but I'm a bit lazy tonight.