Here's a great post that lists many different places to upload videos, services to help you do mass-uploads, and where to submit video RSS feeds.
Where to Submit Videos and Video RSS/MRSS Feeds.
This article lists 4 different ways to submit videos to multiple sites (mass-uploads) so you don't have to do it all manually (very time-consuming). Personally I prefer to use Traffic Geyser because it uploads to more than 30 sites - including all the most important such as Youtube, Revver, Google Video, MetaCafe, etc. - and it will turn your audio track into a podcast and upload that to a further 20+ podcast sites.
In my estimation Traffic Geyser is the best video distribution system available. It contains numerous very helpful instructional videos describing how to create videos, how to optimize them, and much more.
With our own service called Video Traffic Multiplier we use Traffic Geyser for the distribution of our videos.
I have also used (and continue to use) TubeMogul, but it has some limitations. However, it is free.
Thanks for the info!