http://www.hotelsbahamas.com/?refid=10145
This will give you the rates for all the hotels/resorts in the area.
Personally I like staying at Atlantis on Paradise Island about a 10 min bus ride from Cable Beach. Some timeshares are available in that area for rental on short notice. These units have kitchens so if $$ is the problem, thats the cheapest way to vacation. Buses there are about a buck US the last time I recall using them.
Wyndham I believe is offering rooms this week around $120 a nite and Sandyport Beaches Resort around the same. I've stayed at Sandyport and its really nice. Not on the beach but thats a short walk away.