Simplicity is a two-column theme with widgets in the right column. However, there's an additional widget zone at the bottom of the site which fills up to three columns of widgets. You will need to add a widget to that zone for the zone to show up. The theme uses an abstract blue header image and shades of gray on brushed steel to give a semi-professional look in modern browsers (IE9, FireFox, Chrome, and Opera) using a few CSS tricks.
Simplicity theme is Free, You can download it in the BlogEngine's admin panel and use it for your blog.