Post Revolution is a powerful wordpress plugin to create unlimited post grid layouts and post lightbox previews. You can choose between 30 amazing layouts already included. 
Enjoy with Post Revolution and transform your site thanks to endless customizations: grids, loaders, captions, excerpt and preview. 

Product page: http://codecanyon.net/item/post-revolution-amazing-grid-builder-for-wp/7959204

This plugin has been fully nulled, to install simply upload it to your host like you would any other wordpress plugin.