$100 · Apple Airport Express

The Apple AirPort Express base station makes setting up a Wi-Fi network so easy, you can do it from your iPhone, iPad, iPod touch, Mac, or PC. It can transmit both 2.4GHz and 5GHz frequencies, and can even turn a set of speakers or your printer into wireless devices so anyone on your network can access them. Plug in speakers and you can stream your iTunes etc. Compare at store cost of $132