I recently built a system for my dad and shipped it to him via UPS. I've built and shipped several computers for friends/family, I've worked in the shipping business before, I know how to pack things so they don't break. My dad got the system Monday and called me up, he asks me "umm, is there supposed to be something rattling around in the case?". I don't know what UPS did to it, but the mounting screws were ripped right out of the hard drive. I walked him through reconnecting the HD and the system wouldn't power on. After having him check a few basic things it turns out that the front panel connecters just came unplugged and it fired up. I'm pretty surprised the HD still works and nothing else was damaged from it rattling around loose inside the case. I don't think I'll be using UPS the next time I ship a computer.