Something worth noting with regards to Buses at Temple Meads...
If you happen to miss the 8 or 9 and don't fancy waiting another 5 or 10 mins. Walk down to the end of the station, if your not sure where that is, head for the Holiday Inn right infront of the station entrance. Cross the road at the traffic lights just to the right, and once your the other side of the road, head left towards some bus stops... Buses serve there about every 2 - 3 minutes. I've never waited there longer than that.
Most services from there will take you to the Galleries (except X39 and 339), Alight at KFC, walk to the bottom of the hill and turn right, Cabot Circus is about a 4 minute walk from there.
If you do happen to take 8 or 9 ring the Bell to get off as you get the other side of the traffic lights on the roundabout with the main road going underneath (sounds odd but makes sense when you get there) If you ding before this point, the bus stops at the stop just short of the roundabout. Anytime afterwards, you'll end up going all the way round to St James Barton before you can get off!
Once off head past the Multi Story carpark and theres a large walkway to your left, head down there with Cabot Circus on your right, Turn right when you get to the end of the walkway and your there
HTH