Stayed in the Canterbury Guest house on Salcombe Rd once during a big family celebration: it was fine and reasonable price. V handy for the Radway, not too far from the Anchor. There's a whole row of guest houses/B & Bs on the road up to the Volunteer from town too. But as Kitty says, the local tourist office will prob sort you out.
If you have a car and don't mind driving, we have friends in Tipton who do farmhouse B & B too.