I stopped where I did mainly to hear this very discussion. I definitely want to explore more with the trireme and its units before founding a city.
Generally, I envision island cities more as big trade producers, not necessarily so much for unit production. Needed units would be sufficient defense from barbs (where are they?) and perhaps trireme(s). Growth would require a temple, trade routes, library, marketplace, and a harbor (Seafaring) as a minimum. I'm presuming we wish to head for republic in the not too distant future ....
I'm also very happy to hear more discussion on the Northlands. For example, I didn't know the horseman was headed NE.
As far as I'm concerned, the more that gets pointed out, the better. I'd prefer to have guidance rather than relying too much on executive decisions. I want to do the best job I can.