Newegg has the SiliconDust HDHomeRun Network-based Dual Digital HDTV Tuner Ethernet Interface (HDHR-US) for $100 with free shipping. This dual tuner solution plugs into your network and lets you receive both over the air and unencrypted content from your cable company.
Good Price...
Sold Out
It was $85 shipped on Woot about a month ago. SiliconDust must be coming out with a new model.
http://www.silicondust.com/products/hdhomerun/prime/