If you haven't seen it already, and you like Spanish horror/thrillers then I recommend 'Tesis' the film Alejandro Amenabar made before 'The Others'. Plus 'Intacto' directed by Juan Carlos Fresnadillo. Both great films.
As far as The Orphanage goes, I thought it was really well done. It's one of those scary movies that understand that good acting goes a lot further than cheap gimmicks.