I'm sure they won't drop in price as much as the 5830, 5850, 5870, & 5970.... the 7950's might be worth it too, but not going to touch a 7970 unless I see one for $300 or less..
example:
http://www.newegg.com/Product/Product.aspx?Item=N82E16814202004
use the MIR on that and sell the games and you've got a card you payed $120 for.... $110-$115 if you put a little effort into selling the games
two good 7790's
http://www.newegg.com/Product/Product.aspx?Item=N82E16814131490
http://www.newegg.com/Product/Product.aspx?Item=N82E16814150667
check how much they go for on eBay... if you do the MIR + sell those games, those are under $100