i have a HQ and 5 store operation and the HQ database is nearing the 4gb size limit for SQL 2005 (free version). this is the same version i have on store POS (but we're not running in to the size problem there to date). my question is what version of SQL 2008 would be recommended - standard, workgroup, etc? is this as simple as loading the software and upgrading the existing version? Are there any issues with running HQ and stores on different versions of SQL?