I stayed at Stour Villa. It's the cheapest at £25 a night and the couple who run it are really friendly. They will tell you what to expect (as they have applicants every week) and will make sure you get there on time. They will provide transport if you need it.
If no-one else going to CTC is staying at that B&B they will ring round and try and get you guys to meet up (helps a hell of a lot with the group discussion).
The number is 01202 483379