the above will work
the other option is to hav lock boxes that the USB cables run into and the box it bolted to the rack or wall.
this lets one have access to the iloks if needed w/o having to open the computer up
something like this on a bigger scale
http://www.instructables.com/id/USB-Safe/#step1
or this
http://www.findtheneedle.co.uk/compa...it-dongle-safe
or you could try this IP server for USB dongles
http://www.seh-technology.com/produc...le-server.html
I work in a school with over a 100 system on ilok, were on PT10 and was so glad to get rid of the MBoxes