This is a very helpful article on pre-installing SQL Express on a SCCM 2012 Secondary server so you can customize the install to fit your needs. http://blog.tyang.org/2012/04/09/installing-sccm-2012-rtm-secondary-site-using-a-pre-installed-sql-express-2008-r2-instance/ Even after all of the tweaking noted in the article I still had
Important note about System Center 2012 Configuration Manager and client machine restart notifications
When it comes to being silent, there is suppress, really suppress, and broken. Read more http://blogs.technet.com/b/configurationmgr/archive/2012/08/13/important-note-about-system-center-2012-configuration-manager-and-client-machine-restart-notifications.aspx
ConfigMgr 2012 and 32-bit Application Installers
This is a great article by Jason Sandys on file and registry redirection when dealing with 32-bit applications on 64-bit operating systems. Read more http://myitforum.com/myitforumwp/2012/08/12/configmgr-2012-and-32-bit-application-installers/