These are two of the three skunks that live under my back porch. The mostly white one I read is very rare. Surprisingly, they can be very friendy once they get to know you and are very intelligent. Heres the video link: http://www.youtube.com/watch?v=tI8YYWikHJ8 .
My understanding is that there is quite a large group of skunk (as pets) owners out there, I saw a convention or something on tv. Of course, I think starting with a captivity born and "de-scented" one would be a good idea.
