I have a Netflix subscription, a D-link dir-165 wireless router connected to a (Comcast modem?), and I'm planning on buying a Edimax ew-7811un wireless usb adapter. would this be sufficient for streaming netflix on to my Samsung 40in flat-screen TV? here is a link to the usb adapter (dongle) http://www.walmart.com/ip/Edimax-EW-7811Un-150Mbps-Wireless-11n-Nano-Size-USB-Adapter/17419471 would that work or should i just get this? a Netgear Universal Wi-Fi Internet Adapter http://www.walmart.com/ip/Universal-Wi-Fi-Internet-Adapter/14550215 or should i go with a Roku?