If you'd like to watch, NASA TV is available for online streaming in RealPlayer or Windows Media courtesy of Akamai and Yahoo. There's more streaming bandwidth available for this launch than for any past NASA event. It probably will rival a Steve Jobs keynote at Macworld. :-)
http://www.nasa.gov/multimedia/nasatv/
This morning someone else commented on my cool watch... a 50something guy in the elevator when I was downtown for an appointment this morning, wearing grey slacks, blue blazer, and red baseball cap. (!)