looking for room or cheap apt.

I just found this website and it looks like people are super helpful - just wondering if anyone knew of a room or an inexpensive apartment available? or even someone looking for a roommate? I'm flying into buenos aires on the 2nd of sept. and will be staying for about 3 or 4 months - doing random stuff - getting my spanish perfect and well - just getting out of Oklahoma for a bit. I've got a place to stay the first week - so I can look around, contact people and try and figure out a place to live. Any info would help. email me at melindaB_happy@yahoo.com
Looking forward to meeting some fellow expats,