In fact, my wife and I are planning an entire 3 month UK and Europe trip next year around picking up our Nomads in Somerset! I can't wait to get on to a Rohloff rig!
Totally off topic I know but if you are this close to Bristol, about 20 minutes on the train or a few hours to ride, you can take the cycle path to Bath and Bradford-upon-Avon, a fantastic ride. If you are feeling adventurous you can actually carry on along the Kennet and Avon canal most of the way to London but the towpath gets a bit rough in places.
Back to topic, another thumbs up for SJS cycles, they do some excellent bikes with specifications to suit everyone.