Well, Cowboy Bebop had the benefit of like-sounding characters and roles that were easy to fit. The coolness of Spike worked with smooth talking on either side of the Pacific; the problem I perceive with Naruto is, we're going to have screaming kids and whatnot, and it's just going to sound retarded to us. If it were Jounin and up, it'd be better, but imagine Naruto speaking in English in a different. "AHM GUNNA BE HOKAGAY N U CANT DO NUTHIN!" "H-WHAT" "OH-KAY!"