Also a good option for someone working on a Launching a website for their MVP, especially if you are someone like myself who is a terrible designer. http://themeforest.net/ has plenty of great themes that would work well for landing page, etc.
http://themeforest.net http://graphicriver.net http://codecanyon.net
Some of my favorite wordpress themes form themeforest: http://themeforest.net/item/pandora-wordpress-business-portf... http://themeforest.net/item/bigfeature-wordpress-theme/51702 This one lets you sell digital downloads: http://themeforest.net/item/the-furniture-store-wordpress-ec...