Each day this week CH's bringing you one of our favorite innovations from Popular Science's Best of What's New 2006. Today, we take a look at the Plug and Play Ultrasound Probe System from Direct Medical Systems, an inexpensive ultrasound that plugs directly into a computer via the USB port with motors that can run on five volts of electricity. Priced at around $5,000, the Plug and Play costs many times less than standard models, which makes Ultrasound technology more accessible to doctors and reduces the need for pricey specialist visits. Also from Direct Medical Systems, Pups, a veterinary version of the Ultrasound, provides access to high-quality diagnostic imaging systems for animals at affordable prices.