YouTube video metrics

Is there a way to check out the metrics on your YouTube videos, to get info on how much of a video people watched, or if you've got repeat video viewers? I'd think this info would help you get a clearer sense of what parts of your videos are most successful.

You can see video stats with YouTube insight, as well as how often the videos are viewed across various geographic regions, and how popular that video is in relation to that particular region, over time.
YouTube - Broadcast Yourself.