Colio – Responsive Wordpress Portfolio Plugin will help you create and manage multiple portfolios for your website with different sets of items and individual settings. In Admin you can easily select number of columns, choose font size for titles, button color and much more. However main feature of the plugin is its ability to display item details on the same page in form of expandable (sliding down) viewport, that can appear before, after or even inside the grid! Besides this plugin comes with two themes for item details, can display extra photos as feed or as slider and provide social links for easy sharing your works.

Demo: http://codecanyon.net/item/colio-responsive-portfolio-wordpress-plugin/7687452