Nova Gallery WP makes it easy to embed the Nova Gallery – Responsive HTML5 Multimedia Gallery, in your Wordpress theme. It is a HTML5 multimedia gallery enabling you to showcase your photos/audio/video in a beautiful and sleek interface. You have the option of presenting your items in two different modes, which are a Thumbnail Grid and Full-width view, and you also have the option of switching between the two modes.
Demo: http://codecanyon.net/item/nova-gallery-multimedia-gallery-wordpress-plugin/4385228