Synergis Adept will allow you to map any of the custom properties including the system properties (first tab on the properties dialog - Title, Author, Keywords, etc...), the build in custom properties (Checked by, Client, etc...) as well as any custom properties you add yourself (Color, Material, MRP Code, etc...)
Additionally, it will allow you to batch update the custom properties in a directory full of SolidWorks files, adding the custom property if the file does not already have it.
I think they won 'Best of Show' at NDES this year but don't quote me on that.