As far as established Norwich punts go Lauren_Independent
External Link/Members Only is doing a £70 half hour at the moment, apparently tomorrow (22nd Jan) will be her last day in Norwich so she has reduced her ph price to £110. It says on her AW she is 'on tour' in Norwich but I think that just means she is working from a hotel for a bit instead of her Norwich home - I think she had some trouble recently so has changed her location.
Some people have commented in previous posts that they didn't find her very attractive, but she certainly puts in the effort and I've always found her nice enough to look at.
Might be worth getting in before it's too late!
Last year I used to visit "fantasy girl 4u" whom only charged £50 half hour, although the less said about her reviews on here the better. She's stopped working now anyway.
Don't forget to let us know how you get on. :-D