Carn, I am as pissed off as you are.
I watch it every year on Supersports (DSTV), and this year they've taken it off!! (Maybe those in SA can start a petition to bring it back)

You can get live timing on the official Le Mans site:
http://www.lemans.org/24heuresdumans/pages/accueil_gb.html

Radio Le Mans has extensive coverage this week and of course, will be covering the entire race.

http://rlm08.0157.org/

Enjoy!