Luster - is the biggest Real Estate theme in our days. It comes with tons of page templates and customization options. This theme is the best solution for your business. First of all the theme is dsIDXpress ready and works perfect for MLS / IDX integration. Second, you can use the own custom post type called «properties» to create your personal listing, that have a lot of custom options. And, also, you can enable the option to admit your visitors to publish personal properties.
Demo: http://themeforest.net/item/luster-the-b...me/9719682