metaEngine have a nice looking Metro style created using the Data View Webpart on there blog.
And it’s a free download and is said to work on both Sharepoint 2007 and 2010 so go have a look.
They even have a nice walkthrough of the XSLT for the webpart.
http://www.metaengine.com/2012/03/SharePoint-menu-web-part-with-Metro-style-using-a-DVWP