Give the first post in this thread a look, Djm. http://www.antionline.com/showthrea...t=disabling+usb
Hope that's useful.
Yep, this will work for the machine but not the user. The same goes for the link that Phisshy posted too.

We did a study on the risks to the organization relating to USB flash drives. The bottom line is that short of filling the USB ports with super glue, you cannot effectively defend against these devices. They are far more simple to use than CD-Rs and the like, much faster, much easier to conceal, etc..

That said, we had to rethink where classified and sensitive data can be accessed. If data of these types could be displayed on machines that could save, forward or otherwise capture the data without an accounting trail, then it was repositioned.

See here for more infoz:
http://www.enterpriseitplanet.com/se...le.php/3486161