ex-pat looking for apt/roommate

#1
Right now I'm living in San Telmo, just 5 blocks south of Plaza de Mayo, but am paying a bit too much for what I'm actually getting. Looking to find some place a little newer/nicer for around $200-$300US if possible. Anywhere in microcentro, or barrio norte as a whole are what interests me. Am also planning on being here in BsAs for no less than 3 months from now, but probably closer to 6-9months. Let me know.