I would be very careful about where you choose to go, from experience and from reading forums many cheap places that offer that kind of bandwidth may end up going out of business, cutting you off for using too much bw or system resources.
I would recommend getting a cheap VPS if you are looking to use more resources, it is no mans land when you are looking to get high bandwidth usage for such a small monthly fee which goes back to my first points about being cut off
Good luck in your search