For the non-residential portion of CIV, free billeting will be arranged for as many CIV attendees as possible. However, a billet is not guaranteed.
Cheap, convenient Canberra accommodation is available the Canberra YHA. This is about a 15 minute walk from the rehearsal location at ANU, is right next to a major shopping centre and bus interchange, and starts at $33 per night for a share dorm. They also do private and 'family' rooms.