In reply to Powley:
The CC guide has the best information but not a whole lot in terms of topos. The Wye Valley Sport guide probably has the best, in that the obvious and worth-while trad routes are often included in the topos.
Were you looking for something specifically? To be honest, the best information I used for climbing the few trad routes I've done there was the sport guide in combination with the ordering and descriptions on UKC. If a route climbs the obvious corner crack to the right of *insert sport climb*, it's usually pretty obvious.