My dev box is currently runnng WINXP pro, VS2008 pro and SQLServer 2005 dev plus SqlExpress. Now I need to install SQLServer 2008 dev on that same box. I plan to keep SqlExpress and all existent databases. How easy is the installation going to be? Any precautions or caveats to beware of? Can I use SSAS with the new SQL2008 intall and the preinstalled VS2008? Thanks for any help.