hello, the best way to go from ezeiza airport to downtown is the bus "Manuel Tienda Leon" that leaves you in 1 hour at the obelisc that is close to maipu street, maybe you will have to take a taxi then, but you are not going to spend lots of money... sorry for my english, i spect i`ve help.. i`m going to be here in argentina in those days, working and studyng.. but write me for anything you want or need my mail is milumia@gmail.com