I was going to post this in the main 3DS thread mentioning this but it seems pretty slick. If you didn't know, if you register Fire Emblem: Awakening and Shin Megami Tensei IV before 8/31 on Club Nintendo, you get a $30 eShop credit. Normally with the first run edition of SMT IV this would run you $90.
Newegg has a combo deal now for $10 less:
If you didn't have a pile of Gamestop/Amazon/BB credit like me (new 3DS XL owner), not a bad deal.