Thanks for the turnset Norvin.
Thanks also lymond for your input:
Great General
I still don't quite 'get' this thing about not improving the HE city with multipliers (I mean that I understand its reasoning - but it seems counter-intuitive), but nonetheless if Hurrian's out, I'd also look at the cities with three settled Great Generals; Cahokia and Tenochtitlan, as prospects - although both are quite 'hybrid-y'.
Tech'
Basically everything along that Computers bee-line is pretty handy, and both Electricity and Assembly Line have appeal. I would have hoped that Joao and Isabella might have been more forthcoming with trades than they are - our vassal is Isabella's worst enemy. If we can get Electricity for Military Science and

, then good-o!
Spanish stack
Even if we run 10%-20%

, the border pop in Machu Picchu will only bump that stack to a more northerly point on our continent. lymond's right in that we should watch it until we can at least get Sitting Bull into Free Religion so Isabella becomes more reasonable. I'd consider moving some of the units in Tenochtitlan, Chaco Canyon, and Texcoco to Machu Picchu in preparation for her possibly going WHEOOHRN.
Infrastructure
Most cities are fine, but there are a lot of cities missing quite useful buildings. For instance Tenochtitlan has; an Academy, a merged Scientist, a Library, plus six Towns, but no Observatory or Uni'. There are a few cities on winding rivers that don't have Levees. I'd just go through them and weigh up the cost-benefit, but again, 'yep' - most cities could look to building Wealth. It's a good opportunity to review the citizen allocation in each city.
Sitting Bull
Agree that we should gift him technology to get him up to speed - as per above, I'd gift Education and then Liberalism to him as a priority. Also, we should Open Borders to improve our trade route income with both Sitting Bull and Willem van Oranje.
Roster
lymond << Up
nocho << On Deck
Sengir
Cam
Norvin