I am working on doing a campaign based in the Mythological Greece. I'm using the book "The New Argonauts" by Sean K Reynolds as a kind of basis. The only playable race in this world is going to be humans, but I wanted to flavor it up a bit by having the different Ethnicities in Greece (and possibily the surrounding world) work like the different Races do in standard DnD. Small pluses or minuses to stats based upon the Ethnicity of the character, bonuses to some skills, etc. If you have any feed back/ideas or know of some other cheap/free pdfs that might help me, please let me know!