Youtube Gallery is a great extension for Joomla. Just tested it yesterday and today. It can do nearly everything i want it to do. But one simple thing is missing. If the Video is finished, it should automaticly change to the next or to a random video. Also it would be an amazing feature, if it could report dead links.
If those 2 features would be added in near future, I would stand in line for this extension and buy it at releasedate :).