i use McTimoney Emma Pent (i think that's the right surname) based Lincoln way, travels down to me (quite a long way!) very very good, costs me £40-£45 per horse incl travel.
Another vote for Hannah (she is the one from Repton too!) - did an excellent job with my tricky horse and he has never felt better. Uses a lot of different techniques, is lovely with the horse, worked with my vet, and takes the time to explain things. Brill!
I have used two McTimoney Chiros both very good
Emma Punt (based near Loughborough) and Nicky Burton (Oakham, Rutland). Both charge £40-£45. Nicky does both me and my horses (dogs too if you want). She has definately fixed me so I know it works!! PM me if you want their phone numbers.