If this is the case get a better host. The people i use give me 400 gigs of bandwith a month, more then i will ever use ever. if i go over i get charges $5 for an exta 5 gigs. Let me explain 400 gigs of transfer to you in a simple way
if one of my pages is 50 kb that means it can have 8 MILLION PAGE VIEWS before i go over.