Ok, so I got a couple locks to secure my stuff at school. My displays and laptop lock up just fine. I dont quite understand the PowerMac G5 lock though. It is supposed to lock the insides of the computer too so it has that pull out tab you are supposed to put the lock through. What kind of lock goes through that hole? I am using the standard laptop lock and it obviously cant lock this thing up. Any ideas on how to lock it?