1. Vegas Background jQuery Plugin
Vegas is a jQuery plugin to add beautiful fullscreen backgrounds to your webpages. You can even create amazing Slideshows.s
A simple jQuery plugin that allows you to add a dynamically-resized, slideshow-capable background image to any page or element
3. Supersized jQuery Plugin
Full screen background slideshow plugin for jQuery
4. jQuery tubular
Tubular is a jQuery plugin that lets you set a YouTube video as your page background. Just attach it to your page wrapper element, set some options, and you’re on your way.
A good way to have extra content or a navigation tool in your page.