There is some major "minotaur action" in the Midgard Campaign Setting book, with some minor Gnoll and Centaur action...see KP's "Kobold Ecologies" for Wolfgang's take on Centaurs, and gnolls will be getting their due very soon, if my Wolfgang blackmail scheme (involving photos and videos of the Midgard Launch Afterparty...) comes to fruition....
This book focuses on the traits, feats, spells, magic items, trade goods, archetypes and prestige classes of the Dragon Empire.
The playable PC race that is featured is the Dragonkin (who, like your avatar, Teiidae, are impressive and dangerous at the same time). They are a unique truebreeding hybrid race of dragons/drakes and men, a product of the Empire's founding. They make excellent warriors, sorcerers and oracles.
Kobolds get their due in the Campaign Setting, as well as the Crossroad's Players Guide, co-written by the talented Christina Stiles and Your Humble Author. (All the really icky, gory stuff is mine) **flashes fangs***