Hi:
One of the best resources for PROC REPORT that I know of is the SAS documentation for the REPORT procedure.
Other resources are Tech Support samples, which you can find by going to this site
http://support.sas.com/ctx/samples/index.jsp and searching for PROC REPORT -- there are 22 examples listed.
And for SUGI and SGF papers (you can generally Google them using the search string: SAS SUGI SGF Proc REPORT
There is also a new SAS Press book by Art Carpenter on PROC REPORT.
cynthia