How do I ground the mac mini (2010)?

My new mac mini (2010) is replacing a 2006 macbook. One of my uses is as part of a software defined radio (www.flex-radio.com). This requires grounding the computer body to the radio common ground (or at least that is the ideal thing to do). With the macbook and other computers I always used the tiny locking hole not as a security lock but as a grounding site where the security cable was cut and the metal cable connected to the common ground - this always worked well. I've been pondering the new mac mini the past month and can't figure out how to ground it. I suppose I could drill a hole in the metal body somewhere to put in a small screw that could attach a grounding cable, but hate to mar its gorgeous body. Any ideas?
Joe