Not sure when this ends, but I went into Gamestop on my lunchbreak yesterday and saw the signs everywhere. Luckily, the day before someone had traded in their HD DVD add on along with about 10 HD DVD's. And it stacks with the Edge card, got 4 HD DVD's for $35 and change
YMMV on HD DVD's and...
http://www.fye.com/Movies_stcVVcatId509775VVviewcat.htm
Coupon Code: TVBOGO1107
Not sure how good a deal this will be, but just saw this as I was browsing. Merry Christmas!