ooo, I don't know if apartment walls can hold up a heavy bag to be honest. I guess it depends on the size of the bag. anyways I got a really good bag at www.ringside.com, and bought the wall mount hanger. Total was like 230$, Its badass.
Unfortunately a heavy bag in an appartment doesn't really work out well. You'd lose a chunk of your security deposit if you drilled into the ceiling and your landlord found out and had to fix it. Most of the free standing heavy bag holders are crappy too. They always move around and you have to weight them down with up to 200lbs to ensure they don't move. The free standing water bags aren't all that bad, except you wear through the foam padding through regular use.