There is nothing quite like having an atomic clock in your home to keep track of time - after all, that has the least amount of discrepancies with the current national time. This is where the SecureShot clock comes in, where it will rely on an atomic clock to remain accurate under all circumstances, and even better is the fact that it boasts a discreet thermal motion-activated spy cam which is capable of sensing body heat up to 30 feet away, and is touted to not have a negative impact on battery life when the sensors are in standby mode. Slot in an SD memory card and you can have up to 20 hours of VGA quality video. The price to pay? $649 a pop.