Are you looking for furnished or unfurnished? For furnished 2 BRs, in a nice section of town (Palermo, Recoleta, etc), I would say you're looking at $1500 USD & up per month.
Unfurnished, much less but unless you're planning on staying long-term, it's not really cost-effective to furnish an apartment yourself.

Thank you all for the information! My wife and I are looking for a one bedroom, one bath, full kitchen, and are dreaming of a pool in Recoleta. I have been looking mostly on Craig's list. I think we can find a decent place for less than U$1000 for the month of December. I have read that December is the most expensive month and rent can be marked up as much as 40%. We are planning to rent for only one month, so if prices drop after the new year we can find better rates. Any truth to this?

Hi,

Thanks also for all the information, it is very useful! But I still have a question. In march/april I am going to BA to learn spanish and I would love to live with local students/young professionals (or other international people who study in BA). I saw that most big language schools do offer this, but is there also a way to find a temporary place to stay besides this? I would prefer to look for a smaller language school when I am in BA, for example a school/institute/cultural center that other people would recommend. Thanks very much!

Sasja

This post was started ages ago, I just thought I´d add some more updated info about renting apartments in BA:

- As mentioned a loooong time ago, one option is classified sites. La Nacion and La Clarin both have good sites for housing, and this is also where the locals look, so you know they are normal prices.

- other classifieds, such as OLX and Craigslist have good postings, although mroe geared to tourists (especially craigslist).

- Solo Duenos is a great site, where you deal directly with the owner. Watch out for scams, they are not common, but because there is no official mediary, you have to be carfeul.

- you can deal with the loads of Real Estate companies as well, but you will end up paying for it. The good news is, some are very helpful and save you time and headaches

For a better description of different resources for finding apartments, check out this resoure guide to apartments in Buenos Aires.

Cheers,
Diego