Altmers are 25% weak to fire, frost and shok
Dunmers Ancestor guardian spell summons ancrestal ghost for two minutes
Nords are only 50% resistance to frost and Thunder fist spell is renamed to: Nordic Frost and does 50pts of frost damage.
Argonians have waterbreathing ability (constant effect)
Bosmers Beast Tongue spell doesn't last anymore !?500?! seconds
etc...
It may be just me but argonians should not have constant effect on thier waterbreathing. At least non who would like to join the temple anyway.Unless there is a trick I don't know about.Also in gamesettings tab there is an option called npc base magicka multiplyer, at 2 by default. why not just up that so they have more then nobody could cheat unless they really change the pc tab for more. It would cover any custom races added to game as well. Other then that seems like you did a really good job putting it together.