InReview Theme by ElegantThemes
InReview is an advanced Review Theme created by ElegantThemes that allows you to transform your WordPress blog into a fully-functional ratings website. The theme makes rating products easy with our custom options and integrated user-review system. The InReview theme also includes affiliate integrated and custom widgets to help you increase conversions.
InReview demo: http://www.elegantthemes.com/preview/InReview/