yeah a little research can be really useful, but a few years back i went on a day trip to london to the victoria and albert museum and just had a quick look in the time out guide in stanstead airport once i arrived, wrote down the names of a couple of pubs near the museum and found a cracker down a residential street that had about 6 different ales on tap, had a few pints there then off to the airport afterwards. i've found the local CAMRA secretaries very helpful on any trips i've made to the UK, if you drop them a line before you head over they'll usually get back pretty sharpish, they've helped me out in birmingham, cardiff and nottingham and haven't steered me wrong yet.