Ya those models are all pretty well-known, some already celebs, and they're all far too successful to go on BB... they've got to be more obscure. I'm thinking the australian model from the Lynx adverts that someone posted in another thread.
EDIT:
Actually I'm not sure if she's the Lynx model... doesn't say anything bout it on her Wikipedia and she also seems VERY successful, I don't see why she would risk her great career by going on BB.