Here is a video of Obama addressing the staff at his headquarters after clinching the nomination.
It is every bit as good as his stump speeches but I thought more personal. He also makes some really good points about the election.
To paraphrase: While the primaries were important, the stakes weren't as high because if they stumbled - another qualified Democrat would still win and everything would be fine. However, now that they have won, the burden is on him/the staff. They HAVE to win, the entire country is depending on them.
It is a pretty inspiring rallying of the troops and a good insight into an Obama administration.
Here is the video - worth the watch.
http://www.youtube.com/watch?v=bnhmByYxEIo