Amazing, I've just discovered FFH2 and the Sims3 (after playing my christmas binge games for about five minutes) and suddenly there's let's plays of both.
Excellent choice with the Grigori. One of my favourite civs to play too, although I am rather fond of Khazad and Amurites too. Still havn't got round to playing an evil race yet though.
Can't say I'm a fan of Rise from Erebus though. I don't like the new civs, the mechanos in particularly: Steampunk/Techpriests. Ugh. Steampunk is great, but they really could have tried harder with the ideas.
I think the capital city has to be "Twelfth Bay" really doesn't it? I also think the first priority should be getting at least 3 warriors to sit around in the capital. Barbarians are fun...
Anal retentive mode go go go:
It irritates me a little that they call the Grigori "agnostic." They are not agnostic. Agnostics neither believe nor disbelieve in higher powers, due to lack of certifiable evidence for either argument. Nor are the Grigori athiest. Athiesim is the complete rejection of deities because of personal belief that such beings are impossible. Therefore, neither term is appropriate. Why? Well, unless I've misread the bits of lore in the Civolopedia the Grigori know that gods exist without a shadow of a doubt (Cassiel is an angel, after all), but choose to reject them. A more appropriate term is needed, but I'm not aware of one. Atheism is a combination of "theism" (the belief in at least one deity) and the "a prefix" (meaning not). So perhaps Antitheist would be a far better term.
/anal retentive mode
Otherwise, good luck!