There might be a guy at the Fort Myers gaming groups location that has a TON of old 2nd and 3rd edition IG.
I'll see if I can get in contact with him and see what he has if your interested. He is pretty good about trading (I got 22 Armageddon Steel Legionnaires for 5 DW Terminators).
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Adeptus Astartes Commandments
1. Thou shalt not replace the Librarian's staff with a magic wand.
2. Though shalt not refer to thine brethren, whom the Emperor has dictated be armed with an incendiary weapon, as a "Flamer" constantly. For this has been proven to lower morale and cause strife within His Most Holy showering facilities.
3. Thou shalt not follow a Librarian around thinking, "Can you hear me now", repetitively in an attempt to drive him insane.