I am a member of two other sites that have guys who collect HOF rookies.
Try these two sites:
http://www.psacard.com/
www.sportscollectors.net (paid site, but well worth the $15 a year)
This guy named TheNavarro has the best collection you will ever see. He posts on both sites. There is also a guy named JSWieton who has an amazing collection as well. Hope this helps.