I'm trying to find a mini pci-e wifi or gps tracking card. My concern arose last week when my son had a home invasion while he and his friends were home. They ended up getting away with two laptops, two PS3's, a Wi-U and a couple of cell phones. I know there is plenty of software tracking tools to locate a computer, but I want something that can't be simply overwritten by a reinstall of the OS. I was also told, but am not certain, that the base mac address is permanently fixed in a computer. That doesn't sound right to me, though. I would appreciate any and all suggestions!