It should be launching in about 1hr 20mins from now. They're launching even though they found a crack in the insulation foam lining the fuel tank. Let's hope it doesn't blow up!
WMP:
http://www.nasa.gov/55644main_NASATV_Windows.asx
Quicktime:
http://www.nasa.gov/qtl/151335main_NASA_TV_QT.qtl
RealPlayer:
http://www.nasa.gov/ram/35037main_portal.ram