It really depends on what you are after. And where.
Best thing is to come here and book a hotel for 3 or 4 nights and look around.
I found a room with TV and a/c on 5th for $700 a month.
Now I am in a 1 bedroom apartment with full kitchen, a/c, TV, internet for $950 a month.
Have a look here for some ideas
www.andale.com.mx
Paul