Lynne there was a Camra offshoot called CAPE that addressed your need, not sure if it's still going, anyways up here on Tyneside we have a few pubs that have a reputation for good cider and one of them
the Oddfellows Arms in North Shields is having 16 ciders and perries on from the evening of Thursday 24th to last orders on Sunday 27th. The Cumberland Arms in Byker also recently had a cider/perry/pyder fest and The Bacchus does regular guest ciders. Anyways this all very well for the Tyneside crew but i can only recommend Camra's Good Cider Guide for outlets of the good stuff elsewhere.
regards,
Ritchie