2) Beyond the Sword has everything that was in Warlords, right? I keep getting mixed answers about this.
Everything besides the scenarios.
3) Is there any sort of Mod to Civ IV (either vanilla or BtS (which I will be picking up soon)) that lets you either gives you the option to disband cities or use them as trading fodder to other civs? Maybe with Vassals this isn't as big of a deal, but I find myself, especially in smaller maps with lots of civs (which is what I love to play) taking over cities in horrible areas. Either they will be unaccessable to good resources/food tiles, or they will be so far away from my capital that the maintenence costs end up being a big pain. I'm starting to raze more cities, but I don't know... always seems like a waste unless it's a city with like 1-2 pop.
Not as far as I know.. 
4) To the "warmongers" out there (and even those who just play war when they have to) who is your favorite leader to beat down? I got such a pleasure out of whooping up Qin Huang the other day... oh and I also really love getting tribute from Ghandi XD
Anyone who usually kicks my ass.
Thanks guys!