Congrats on your acceptance!
I have been looking for places too but all the decent places I have found by Howard are super expensive. I know Howard has on-campus housing for graduate students so that might be an option for you. I do not know how much they cost though.
Here are the links for their on-campus housing for graduate students
http://www.liveathoward.com/
http://www.howardtowers.net/
The Towers are not on the campus but they offer a free shuttle bus to and from Howard which is pretty cool.
http://www.thetowersatutc.com/amenities/
You can also check out the website for off-campus housing. Their are a variety of places such as apartments and rooms for rent in houses. You just sign up as a guest and you can browse around.
https://howard.offcampuspartners.com/
Some people suggest to check out Craig's List for housing but I have never used it so I do not know anything about it.
Anyway, I hope this helps!