New Vegas, Just Cause 2, DJ Hero 2, Dead Rising 2, etc. Late year game lineup is not as good as in past year's, but the early year was better.
I might do this, even though I shouldn't. Dragon Quest IX DS + Mass Effect 2 + ??? It would have to be a low-priced game, no use buying a $60 and a $30 to get a $20 for free.