BuyDig offers the LG 43" 1080p LED-Backlit LCD HD Smart Television, model no. 43LF5900, for $429. Coupon code "PREBF" drops it to $349.99. With free shipping, that's the lowest upfront price we've seen. (It's a current low by $48, outside of the mention below.) Features include a 1920x1080 (1080p) native resolution, edge-lit LED backlight, Smart TV apps (including Hulu Plus, Netflix, and YouTube), webOS 2.0, USB, and two HDMI inputs.
Of note, it's available at Dell bundled with a $150 gift card for $430 with free shipping. That deal ends today.