Infrenion supports Phpmotion - Youtube video grabber!!
PhpMotion now provides tool that will allow your members to easily get all the videos that they want directly from Youtube. It does not require any complex integration. 
The trick is your members only need to paste the url to the video and the rest is done automatically. The video will appear in their “My videos” section just as if they had uploaded it from their local machine.
The process runs in background so no need for them spend time waiting for videos to download.
For more details and purchasing phpmotion youtube grabber check this –
http://phpmotion.com/content/view/39/183/
Infrenion installs phpmotion free on all hosting plans.
Tags: infrenion ffmpeg hosting, PHPMotion, phpmotion hosting, youtube clone, youtube grabber