If you are looking for a very inexpensive way to stream HD video the Roku 2 is a great choice as it offers flexibility and an easy to use interface.  The only better deal would be to pick up a Roku 2 at $20 off the retail price, which is exactly what the deal for today is.  There are quite a few units available but you might not want to spend too much time debating the purchase as they are not unlimited.

Roku 2 XD 1080p Streaming Player (Refurbished)
Groupon is offering refurbished Roku 2 XD 1080p Streaming Player for $59.99 with free shipping. That's 25% off the price of brand new model and backed by 90-day limited warranty.