Whereabouts are you? As mentioned in a physio thread the other day, a few people have been to Harris & Ross (Wilmslow-ish, but also city centre). I went to Wilmslow and had a good few sessions with Becky. It really helped loosen up a series of very stiff shoulder / pec / lat issues.
I've also heard a recommendation for Anatomy in Chorlton but, despite it being round the corner from me, I haven't been there yet as I've always ventured to Harris & Ross. Anatomy seems a touch cheaper, but Harris & Ross isn't a rip off by any means.