could you video tape it???
Not if I want to keep my law license! I think, though, that the court releases audio recordings of arguments a few days after they occur and they are available on the website. I'll see if I can locate a link for you.
EDIT: Here's the link for audio recordings of arguments... WI Supreme Court oral arguments recordings
Website says available 2-3 days after arguments heard. Maybe I'll cough a couple times so you know I was there.