Hola, aquí dejo una serie de links para las distintas descargas de Denali.

SQL Server Denali CTP3
https://www.microsoft.com/betaexperience/pd/SQLDCTP3CTA/enus/default.aspx

SQL Server Denali CTP3 - PowerPivot
http://www.microsoft.com/download/en/details.aspx?id=26721

SQL Server Denali CTP3 - Feature Pack
http://www.microsoft.com/download/en/details.aspx?id=26726

SQL Server Denali CTP3 - Semantic Language Statistics
http://www.microsoft.com/download/en/details.aspx?id=26724

SQL Server Denali CTP3 - Reporting Services Add-in for Microsoft® SharePoint®
http://www.microsoft.com/download/en/details.aspx?id=26779

SQL Server Denali CTP3 - Master Data Services Add-in For Microsoft® Excel®
http://www.microsoft.com/download/en/details.aspx?id=26725

SQL Server Denali CTP3 - SQL Server Developer Tools  "Juneau"
http://msdn.microsoft.com/en-us/data/hh297027

Novedades en Denali
http://msdn.microsoft.com/library/bb500435(SQL.110).aspx