Thank you everybody for this...
it was my mistake,I dont give more info...
I know prices for air tickets,language course...
I looking for prices for rent in locations like : San Telmo,Reloceta,Palermo,Congreso...
I willing to live with someone who is normal,trustworth person ...and i think it is better to know the person a bit before you come because is not easy to shapre private life and similar things with total stranger.. i know that because I lived 2y in USA with people I have seen then for first time in my life... if you understand what i want to say...so I looking to make and friends here

))))) who is in similar position and i am available between June 1 to July 3,2010 to come in BA...
I think max price for rent what i can to pay is around USD400...how going with paying in advanced months for example for 1-3 months or how going with that? And in price going and gas,electricity,internet and other bills or not?
That is the biggest question for that,because this is most important questionn...
I think everything else can to fix on place but this...

((