If you're just exposing your daughter to Spanish (not plunging into a four-year high school course or studying for a College Board exam, say) and you don't speak the language, then I'd recommend Rosetta Stone for a nice, self-guided introduction. The version I have is Latin American Spanish.
Eventually, if she gets serious about Spanish, she should know the "vosotros" form, even if we don't use it much in the Americas; and a literate person will of course read Cervantes and all those other guys, who were Spaniards, and so be exposed to their idiosyncrasies (forgive me, Spaniards). But using Latin American materials should be fine. There's so much good stuff out there!
Tia