Charlie, try TOTSC, similar to BGI, but a worthy add-on. As for the character, no I don't think it will over-write your BGII character (unless you manually do that) since they are in separate folders. Just continue with your BGI original character.

Charlie, Civilization/Call to Power is based on your starting a tribe in the stone age and bringing it on through to the space age. You expand from one city to many and eventually reach the space age. I couldnt get into this version-too different from the others, which I played first and liked. Maybe I am too used to the other format. Anyway, if you want it I'll give it to you. Just gathering dust here. E-mail me if you want it!