@Hygro
Well, we have played several games since them. In one, I was way ahead and when I saw he had all the uranium, and I had none, I invaded with a massive, overwhelming force and ended the game before nukes. In the other, we had 4 human players, and the balance of power was such that noone would benefit from nukes, so I didn't have to worry. I always play as Russia, so chances are good that I will learn the location of uranium or aluminum first, and I can send out my forces to capture it if neccesary. That is generally the plan from now on.
Also, after that game, we are both afraid to use nukes against each other. We have been playing eachother since civ2 went multiplayer, and we are the best of our group of 4. Our friend won, because we did not take him seriously. He is a noob. We made an agreement after that game not to fight eachother until the others are gone, but that doesn't work so well. He tries to win by culture when he can, and in our last game I had to take his capital city before it won by culture. It was a great sacrifice, a war of epic proportions that lasted too long and took too much out of my empire, and I ended up losing, too. Our 4th player, the newest of noobs won that game. He won because my army also took out the other human, keeping him from building a space ship long enough for the 4th player to win.