http://www.nasa.gov/mission_pages/d...main/index.html
It's live via the net, too:
http://www.nasa.gov/multimedia/nasatv/index.html
Big Metal battering ram of a probe ramming into a comet live. Sweet.
T-Minus 10 minutes and counting.
Update:
.. and they hit it pretty good. Pow! Right in the kisser!