We have implemented an SQL Server instance inventory systems which consists of an SSIS polling mechanism and a centralized database repository. Among the many things we track on a daily basis is the SQL version and build.
Benjamin Lotter
http://BenjaminLotter.info/[/url]
http://www.LinkedIn.com/in/BenjaminLotter
Delight thyself also in the LORD and He shall give thee the desires of thine heart.
~Psalm 37:4