Since you might be interested in the first appearance of Barack Obama and Joe Biden together after the announcement of Obama’s decision, I will include the full event (August 23, 2008 in Springfield, Illinois).
Part 1 and 2 of the recording is Sen. Obama’s introduction. The last minutes of Part 2 and Part 3 and 4 is the speech from Joe Biden.
Huffington Post provides a transcript of the Joe Biden speech.
This one is for all the Toastmasters out there.
Rich Hopkins was one of the finalists of the 2008 World Championship of Public Speaking. This is his District 15 winning speech.
Update: Unfortunately, the video is not available anymore and I couldn’t find a replacement.
More information about the finalists can be found at SixMinutes