What if we decided to use embeddable videos from vimeo and youtube?
http://en.support.wordpress.com/videos/youtube/
http://en.support.wordpress.com/feeds/
If you have better things to do than figure that out yourself, hire a Wordpress freelancer for a few hours.
Depending on your actual business goals (which you could also discuss with a freelancer - we love to chat about these things) a service like Wistia really might be a better bet than e.g. YouTube. For example, a third party's embedded ads can be kind of jarring in a business context.