Lee said:
Failing to plan is planing to fail.
jaja, Lee I guess you're not 22!
To the OP:
Are you coming down here with some cash or a line of credit (even from your parents)?? BA isn't as cheap as it used to be. I haven't investigated rents in Buffalo, but rents for foreigners here are usually about the same as a smaller US city. And your rent could be in USD. But your pay will be in pesos. And your rent could be 3x as much as your teaching salary, at least to start with.
Secondly, you say you're coming in October -- the new school year won't start until March -- will you have enough money to be unemployed until then? You can read from others' experiences on this board that the job situation can be rather dire through the summer.
Thirdly, what kind of lifestyle are you hoping for in BA? Are you planning on renting in a place with a bunch of other people, or do you want a 2 bedroom together? What level of comfort are you looking for? Are you wanting to come and live the high life in Argentina, or are you happy if you live the lower-middle-class life? On a teacher's salary you're going to be living much more like a local and much less like a rich American expatriado. In other words, no going out for dinner every night, no going to night clubs with 60 peso entrance on the door, and no shopping sprees at Alto Palermo, let alone Galerias Pacifico, hell, even a trip to the Cine at Village Recoleta will eat into your earnings these days!
Plenty of people live on a teacher's salary, but live a normal style of life, not a party it up at the best clubs and restaurants life. The salary just doesn't stretch -- for one hour of teaching you can buy yourself one cocktail at most bars in Palermo. So if you think that you can teach english AND live the high life, don't deceive yourselves.
If you're happy with living a student-style life, or have the luxury of supplemental income (ie allowance) from your parents, or have a decent amount of savings when you come, then you'll have more access to the high life. Otherwise you'll have to adjust your frame of mind before you arrive.
Again, I agree with John.St -- moving to BA without a prior investigation is a big leap. There are plenty of people who have done it and loved it (I'm 4 years here) but there are others who have HATED every moment -- check out Hot Yoga Teacher's (HYT) posts and you'll get the other end of the spectrum of someone who jumped in completely blind and has been regretting it ever since.