New streaming devices from Roku, Amazon best Chromecast

If you're ready to cut the cord and ditch cable, two new low-cost streaming video devices that hit the market this week are worth a look.Roku, maker of one of the first popular streaming devices, has updated nearly all of its products, and the new Roku Express costs just $29.99. Amazon also updated its Fire TV Stick, a USB dongle that plugs into the back of your TV, with new voice recognition features. The price of the new Fire TV Stick is the same as the last generation stic