we forgot to add the best free content managment systems available on the web...
http://www.wordpress.org and
http://www.joomla.org
you can set up your site in a day and both offer awesome functionality with complete customization possible.
you can embed videos from any source imaginable e.g. youtube.
however, what remains to be seen is a free php-based extension that can make a video submission system like portlandmaine.tv has.
