Just to note, the BamSpeedy thread was done in Civ3 PTW IIRC. So, certain situations might turn out differently, but the idea is generally the same. Keep the AI isolated and at war with each other. Also, Pangaea is very possible if you have a huge land mass to yourself. Moonsinger had such a game in the HOF forum (discontinued because the 1.00 double GPT bug made it too easy -- AI had TONS of money, and whenever Moonsinger captured a city, she'd get 4,000+ gold to rush stuff). I've done it with elimination mode on (perhaps the easiest way to beat Sid level). Build up a lot of jags, and let the AI build a city next to your capital. Elim mode is the AI's weakness, since the AI coding tells it to always block the human player.