So I'm looking at HandicapInfo.xml, and I'm seeing settings for both "Tiles per barbarian City" and "Barbarian City Chance." If you set the first to, say, 21, and the second unreasonably high, would you get a world that was pre-settled with tons of barbarian cities? You could then disable (or vastly increase the price of) settlers and have a very different style of game.

Will barbarians research tech? Will they *share* their research if they do?