Not that great a deal, but there's a lot of titles available. Online only. Unfortunately doesn't seem to stack with their Member Rewards program. I think they are fulfilled through Gamestop, but don't see the same deal listed with gamestop.com.
http://videogames.barnesandnoble.com/index.asp?z=y
http://videogames.barnesandnoble.com/index.asp?z=y