This appears to be the only non-commercial youtube CB plugin and "Vipin A" at svtechie.com really must be thanked for providing it. It does not allow for users to add specific videos explicitly, but it does an excellent job of loading all (up to a configurable maximum) videos from from a user's youtube profile, which exaclty what I required as it allows for me to have user's videos hosted elsewhere with inherent "security" of that content being more bound to the actual CB user so that the site doesn't become a mess.
Thank you.

For some amazing reason, with only 6 votes cast on this plugin, it current rates as 1 star. Any google fan-boys in the room? There are plenty of us site owners who want nothing to do with google's data collection activities and who do not want google chrome accessing their site(s). plugins should be rated on whether or not they accomplish their objective, not out of patronage to whoever you personally endorse. This plugin accomplishes its objective. 5/5.