I used the same res files shot with the same cameras for both of these:
Due to the fact that YouTube won't accept videos of more than 100MB or 10 minutes, I used Google Video's upload service, which I am grateful still exists. However, this lovely feature is going to go away. So upload while you still may! And get into their search results. The videos already uploaded before March 30, 2009 will remain online.
Quality is higher - but at a price. You can upload 500MB each week for free. Otherwise, pay $59.95 for a year license with 1G limit per month.
Green Plans Conference - New Zealand from pam strayer on Vimeo.