I'm guessing you should start seeing the x800xL about mid Feb,, and the price range will most likely be $300-$350.
As for the pre-order special? it's doesn't really matter how much they paid for, it's all comes down to how much you are willing to paid to get a x800xl. Since their's not alot of people that got on the deal of the pre-order, it would be tough for you to find someone that's willing to sell you one of their preorders at the price that they got it for.,, .
So you should either wait or start looking for a different card that's already out.