Tanga offers the refurbished Sling Media SlingBox 350 1080p Media Streamer, model no. SB350-100, for $49.99 with free shipping. That's the lowest total price we could find for a refurb by $15, although we saw one for $10 less last week. It features 1080p streaming, Ethernet, USB, and component video.
A 30-day warranty applies, but it's unclear who backs it.