Catfolk will probably be in, although I'll most certainly change it from the catfolk presented in 3.5 sources to date. Thanks for the suggestion! I've already got ideas for the subraces, including tiger-folk, lion-folk, cheetah-folk, et cetera. Seems almost natural that they wouldn't get along with the jackal-headed Anubites (although the latter are Egyptian in flavor, I think it fits).The spider folk might be cool, especially if I give them a shapeshift ability similar to Eberron's shifters.
I'm currently reading through the wikipedia stuff about African mythology, but it's alot of material to cover. 
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