Truth to tell, I'm not drooling over the Chima sets. That usually comes after I see the story either online or on the screen.
What i learned so far is the Chima has 5 tribes: Lion, Wolf, Croc, Eagle and Raven. But that isn't the only animal/man minifigs Lego has produced. Thanks to Ninjago's Serpentine wave, we a long lost Snake tribe ready to join the fight. Even better, the Fangpyre sets also have machine and vehicles.
This is the perfect time too, because many of these sets are heading for the discount bin to clear shelf space for the Chima sets. So now is the time to create a Chima tribe out of the Ninjago sets.