Expanding upon the previous posts regarding SSAS 2005 functionality and performance testing with TD v12.0, a white paper I co-wrote on the topic has recently been made available up on Microsoft's Global ISV "Connector" site for Teradata (http://www.microsoft.com/isv/teradata/default.aspx).  Here's the link to download the thirty page paper: http://download.microsoft.com/download/e/7/7/e77e1cc3-8922-4942-8f6b-1f35e2382a02/Functionality%20and%20Performance%20Testing%20SSAS%202005%20with%20Teradata%20v12.pdf.  Enjoy!