Another gotcha you need to add the hotfix for filestream regardless of whether you select to use it (Windows 2003) http://support.microsoft.com/kb/937444/.

Also on a new install of a 2008 cluster no matter what you do the default collation installed willl be SQL_Latin1_General_CI_AS so to change it you need to rebuild the Master database, its OK if you upgrade from 2005 the collation won't be altered, so you won't have this issue.