Yeah I think it's really cool to speak more than one language. My only other language is American Sign Language. I wish I spoke spanish, though.
German for me!
Begin learning now, and never stop. (An ordinary language you can learn in about ten years; a "dead" language in about 20 .. IF you start one day and never stop.) Languages like Spanish and English are particularly easy, because there's a lot of sources (movies, tv, internet ...). But you should learn formally for quiiiiite a while, before starting take profit of this.
Sorry about the OT