OIPlayer 'attaches' itself to all video and/or audio tags it encounters. Besides the general configuration of the plugin itself, it uses for each individual tag the attributes the respective tag has like poster, width, controls, autoplay etc. Easy implementation
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.
prettyPhoto is a jQuery lightbox clone. Not only does it support images, it also support for videos, flash, YouTube, iframes and ajax. It’s a full blown media lightbox. It also comes with useful APIs so prettyPhoto can be launched from nearly anywhere.