spanish curriculum

I am really wanting to teach my children Spanish right now.   What I would really love is to have them interact with the language.  I DON’T speak spanish but have some background with it so I would be able to help them but would also be learning myself.  Does anyone know of any video series that would allow us to be taught that way?  It would be great to hear and see it being spoken by a native Guatemalan or something!  Or possibly an online course that would be suitable for younger kids 7 and down who are pretty much beginners.  They know the very beginnings, numbers, colors, hello, what’s your name? etc.  But nothing that they could take into a conversation.   Also, money IS an issue right now.  If it’s hundreds of dollars we couldn’t possibly do it. 

  Thanks for any help!  -Miranda