for accommodation for kitesurfers (they also have a Facebook page). Upstairs they have premium/standard rooms and downstairs also a separate small annex that is a bit more hostel/backpacker like (the pro kiteboarders doing a whole season stay there).
Cabrinha are nearby (also in Big Bay) and they rent boards. Ask for Donovan http://cabrinha.co.za/
Also try http://kite.vanhunksboarding.com/
for board rental.