In reply to FunkyDexter:
For Cheddar you'll want Martin Crocker's new guidebook, Dick's Climbing and Gorge Outdoors will have it in stock.
For SE Wales my impression is that the best info is probably online rather than in print, try searching 'SWMC wiki'. There used to be a Rockfax Miniguide but I don't know if it is still available or if the info has migrated to their App. The Gower Rock, selected rock climbs guide is very good but strikes me as fairly selective.
The CC Wye Valley Supplement 2012 is useful, and it is probably worth checking the Climbers' Club website for online info.
The guidebooks situation is admittedly not ideal, but, if you're getting to the stage West Country Climbs is starting to prove limiting you are either not trying hard enough or you are climbing a hell of a lot more than most of us.