7feeds News Ticker for WordPress by IOIX Ukraine is a flash-based tool that allows you to add vertical scrolling news, events, announces, press releases, and other content from any RSS feed to sidebar of your blog. 7feeds ticker is a highly configurable tool: supports themes, customizeble colors, titles, dimentions and advanced scrolling settings.
Download and info: http://wordpress.org/extend/plugins/7feeds-news-ticker/