Gday Roomie,
newcastlesup.com has them (GOPRO wide) at his on-line store,dunno what the freight is for them now but he gives really good after sale service.
As for the fogging issue,we get that here in the warmer weather but Simon at newcastlesup told me that if you load the camera into the housing whilst sitting in your car with the aircon blasting it lowers the air temp in the housing and stops the fogging dramas,
Robbo