I went to Ultrasound Now - the clinic in Stockport, but they also have a clinic at the Alexandra and in Knutsford. It was £95 and was a great experience - DH even said after the nhs one how glad he was we'd had the private one as they explained everything and talked through what she could see. Not rushed at all - would highly recommend them.
Thanks andadietcoke, I will have a look at those places. I want an NT scan as my appointment is taking a very long time to come through and it'll be week 13 before I get my scan, if I am a few days out with my dates (which I suspect - I think I ov'd earlier but they are going by LMP) I could be 14 weeks + a few days and that's too late for the NT scan... at least if we've had a private scan at 11-12 weeks I won't be so worried about when the NHS scan happens. I don't mind about the cost, it is worth it for the proper checks. Thanks again.