"His failure to register as a sex offender when he moved out of state" means he's an unregistered sex offender. So, y'know, that makes it okay, right?

Switches are probably a better idea than hubs; traditional routers typically have a switch built in, but this one wouldn't. You can also add a USB NIC to the Pi (the Model A doesn't have a built-in NIC at all, so this isn't uncommon and there's a list of compatible ones out there, and the NIC on the Model B is going…