The Dynamo theme for Moodle is a 3 column layout with a nice textured background and header with a place for a logo. The theme is pretty sharp and spares plenty of room for your Moodle pages, courses and blocks. The theme is available at https://moodle.org/plugins/view.php?plugin=theme_dynamo and was developed by Joseph Conradt and Mike Finney who recently brought us the Recoil theme.