UPDATE: View the actual Eclipse via @TwiExaminer. Just wow..
And you thought the opening shot of The Twilight Saga Eclipse was cool, how about checking out the real one today! - See at what time you need to tune in, then watch it live right here. It's your only chance until 2012.
Here is another link to the Eclipse, in case the one below doesn't work for you.
Live Videos by Ustream