On a slighty different matter, thinking of Races, and unique units, would it be possible for Racail units to tied it in to buildings in the city rather than the civilisation, (Elven Setttlers would produce a city with the 'Elf Building' Dwarven Settlers with the 'Dwarf Builing etc....) Otherwise capturing and improving Dwarven peak cities will be hard, thus meaning that if u capture a Dwarf city (or Elf City etc...) it retains its ability to produce those units? Also from playing the Elves Fellowship of the Leaves only works so well as you can improve the forests. This would make for interesting Civilisations where you can have access to other Civs units but only once you have some of thier people to make them with.
I really love this idea! it would be a huge step towards Master of Magic. You could build whatever unit is in the game, IF you have conquered it's civilization (or at least a city). It would be possible to make bear totem (etc.) only useful for the orcish tribe, elephants only for some human tribes and you had to conquer a city of them to build these units. Maybe it would make it a whole new game, so a scenario or mod-mod was maybe a first step to it. I have no idea of modding, but it shouldn't be so hard, to give all the race specific units the race specific building as a prerequesite and to make some kind of makro to build the race specific building after you have built a new city with a unit. It would also be possible to give the building some modificators calculated from the alignement, the religion etc. (if the Calabim must worship the Order they won't like it). The race specific building has many many (many many!) new opportunities for modder's I'd say. It should be possible to replace the building by your own civilisation by sacrificing a settler (or something like that).
and by the way: with this building there was no problem in conquering Dwarven cities on peaks
