rlightbox is a jQuery UI mediabox that can display many types of content such as images, YouTube and Vimeo videos. It has many unique features like Panorama and Live Re-size. Like other jQuery UI widgets, it is ThemeRoller ready.
rlightbox - Features:
Sets
Set is a group of images, Youtube, Vimeo, or Flash swf videos, or a mix of them all. There may be many sets on a page and elements belonging to a set does not have to be put one after another in a container.
YouTube support
rlightbox