Hi Andrew and Welcome!
1) Try Lipset's encyclopedia (
http://www.oldcardboard.com/encyclopedia.asp) while you are at oldcardboard.com spend an hour clicking on all their links.
Also ask for the catalog from REA Auctions.
Also, pick a few sets and use the search function on this forum. You can spend hours doing that.
The SCD vintage card price guide might be a good book to get as well.
2) B/S/T (as mentioned), eBay, at least a dozen on-line auction houses.
Welcome, have fun, and don't forget to post a picture of the trophy case
Tony