Hot from Euan Garden’s Blog SQL Server 2005, SP2 CTP Available.  To find out what’s new   Also the download page will be live later this link was not active at 23:31 UK time.  Chris Webb  has bloged  about what’s new in Analysis Services already tonight.

You will need SP2 to install SQL 2005 on Vista, I’m looking forward to trying this out that way I will only need one machine to demo from.