Check out the Talk.Origins archive at http://merengue.ics.uci.edu:8080/.
The archive has a wealth of resource material (with references) that
addresses virtually all of the creationists arguments.
W. Michael McShan, Ph.D.
Dept. of Microbiology and Immunology
University of Oklahoma Health Sciences Center
940 S.L. Young Blvd.
Oklahoma City, OK 73130
wmcshan at rex.uokhsc.edu