Scripting

I need to create a script to search a PC to determine if any .doc or .xls files located on the system have embedded macros. If I get a single hit on that system that would be sufficient to accomplish my goal. Long story short I am deploying Office 2007 to our enterprise and would like to know in advance who my potential trouble children will be. If there are any Wiley Coyote Super Geniuses out there that can help it would be greatly appreciated.