Real brief, but over on rpg.net (yeah yeah still hanging out there occasionally) cloak n' dagger found the following listings for May 2013 on Amazon for AD&D 2nd edition books. This includes the PHB, DMG and Monstrous Manual (thankfully not the folio-style version). Also listed: the S series and A series modules! A series is one of the few I ran straight up back in the day. Secret of the Slavers Stockade FTW!