m not sure how much it is in England, try googling 3D/4D ultrasounds
in England, or you can look
in the phone book. I live
in Reno, Nevada and they are $245 here for a 30min session, a dvd of the whole session, and pictures. I know that they will do a gender 3D/4D ultrasound for $145 but that's just to find out the gender, but you get photos, and a dvd of the session which is only 15min.