Apple doesn't actually consider the failure of the right USB port on a 15" PowerBook as rendering it IUFU. As such, it will have to be fixed under warranty. Nevertheless, though it requires about an hour of labour, it's a pretty straight forward procedure. It's a tiny little board to swap. It's only a pain in the ass because you have to remove the logic board to get at it. I've done it before, and it's not all that much fun.