If you have a look on here you can see the McTimoney Practitioners in your area. I'd recommend it as it's worked really well for both myself and my horses. I don't know how much they all charge, but I pay £30 a visit, which I don't think is bad at all
I know of Tim Jarman. He does a clinic at Spofforth each week (or did, i am sure he still does). Is generally about £60 a treatment. He's very good but I am unsure if he's taking on new clients (article in YP last week suggested he wasn't)