Andrew - I fish regularly around Bristol. Most on the Bristol Avon - Amalgamated Anglers tabs. I like to fish unfished areas as well as the usual Lacock/Limpley Stoke barbel hotspots. Recently been fishing Swineford - excellent for variety if not huge fish - trot for roach, chub, dace and good perch. Excellent area for Pike aswell. Jarretts do day tickets for Keynsham weir pool behind pub - this is great spot if you ignore the litter. Do remember boats can be a pain in the arse below Bath. Recent evenings due to convenience and lacking light fished the Bristol Frome. I like to roam up and down travelling light - had some nice roach, chub and dace with added bonus of the odd trout around a pound. Seen the odd Chub in the deeper pools behind weirs up to the 4lb mark. I have to say the interest in commercial fisheries has left the banks deserted and its great. I remember when it was difficult to get a swim between Swineford and Hanham on the BA not anymore. Take a few hours travelling light moving downstream through this stretch you might have to cut through a few nettles but it can produce some interesting results.
Mike