Wordpress Theme Gallery: Unmatched Themes
Unmatched Themes (unmatchedthemes.com) is a Wordpress theme gallery which providing a lot of quality free Wordpress themes for download. They categorized theme into 4 categories, they are one-column themes, two-column themes, three-column themes and magazine style themes.
Unmatched Themes is using thumbnail to preview the themes so users will feel more easy to choose the one you like at first glance. You also can submit your theme(s) and they will get around to all submissions fairly quick.