So I've been playing on Warlord (EDIT: Not Monarch) for a while, and can usually beat it (although it's usually within 50 turns of time, or thereabouts), but I'm having trouble making the jump to Noble. I think the biggest question I'm facing is, at what rate do you expand early on. I usually try to keep my research at 100% for as long as I can, to get the jump on the AI, but at Noble this doesn't seem to work - if I expand as fast as them, my economy's in the toilet, and if I expand slower, I become a backwater. How soon do people usually build their 2nd and 3rd cities? What research rate is normal?