Thousands of Bolts .. HUGE selection!! Great prices in the range you are looking for. Very good fast service. They carry all the LQS name brands most are $4.50 -$5.50 per yard. They also have a very good selection of quilt backings. Lots of everything from metalics to batiks, flannel ... They have Hoffman, Kaufman, all the brands. They also carry all of the Stonehendge colors.
Do use the search feature .. ( Find a fabric ) because they really do have thousands of bolts.
http://www.thousandsofbolts.com/
Right now there is a sale I think you might be interested almost all of the fabrics are $3.75 per yard.
http://www.eleanorburns.com/shoponline/fabricsale.asp