I love me some Roku boxes. They're cheap, easy to use, and capable of streaming everything from HBO Go and Hulu Plus to Netflix and Pandora. Oh, and don't forget the awesome CNET TV channel, nudge-nudge, wink-wink.
Of course, another box means another remote, and Roku's clickers are so small they can easily vanish into the couch cushions, never to be seen again. (Well, unless you look.)