Let me get right to the deal ... not sure how long it will be around ...
HERE are the details you need to know.
You can get down to $300, if you:
a) Value the Dell gift card at $150 (if you sell it online you should be able to get at least $125)
b) Use the Discover shopping portal (pays 10% back at Dell.com right now). If you are not a Discover card holder, the next best shopping portal right now is TopCashBack at 5%.
So even if you re-sell the Dell gift card for $125 and only use TopCashBack, you can still get the TV for $350 net.
It looks like a good TV, but I'd read the reviews and form your own opinion. That said, I doubt this deal will last long (but you never know!).