Language School In Argentina

Hi,

Looking for a language school in one of Argentina's medium sized
cities, have in mind Mendoza, Cordoba, Rosario, etc. - although Ill
admit I am learning of new cities every day and do not know enough as
it is.

Anyone have recommendations? My plan is to do the school for 1 or 2
months and then travel to other places in Argentina alone. My spanish
will already be advanced when I begin school there. I really really
want it to include a homestay with an Argentinian family - I dont want
to be around others learning spanish who dont know it yet, Id rather
do school and otherwise be fully immersed in the culture and people.

Part of the reason I need this is that I am going alone and Ill need
someone to meet me at the airport, etc, and a means to meet people.

Any advice would be very appreciated, thanks

Dan