I am not sure how to handle it or maybe there is a way to handle it...
but it would be cool to upload a video to Youtube... and then somehow get that videos url link and pass that to a cck Embedded Media CCK Field so can create a new Youtube Video node without 2 steps needed. Just a thought.

Also would be cool to handle updating already created node (vs create a new node) that has a file upload field and EM field. so populates its EM field once upload to youtube is done.

If current modules can't handle, maybe some an action to create new nodes is triggered when the video is uploaded (if possible to get a response from youtube or just keep polling them to see if new file uploaded).