To those who missed out on the $298 deal over two weeks ago, Walmart has the Vizio 50" (D50-E1) for $328 with free shipping.
Specs
Resolution: 3840×2160
Dynamic Contrast Ratio: 200,000:1
Refresh Rate (effective): 120Hz
WiFi: Yes
Inputs
4x HDMI
1x Component
1x Composite
1x Ethernet
1x USB