The Eastbay website has lots of cleats at a pretty good price.
Get on the baseball cleat section and go about 5 pages in (they seem to put the most expensive ones on the front pages ;D) and you will find baseball cleats marked down to about $30.00 and the women's cleats start on this page, too (also some not-too-bad prices).
Have ordered many times from this company with good results.