Over at Slate, David Plotz is bloggin' the Bible. On the Great Flood, he posts:

God announces His first covenant with man, that He will never again destroy the earth with a flood. He doesn't rule out other catastrophes. (God, apparently, is the opposite of an insurance company. He offers flood protection, but no other coverage.)

And who knew the destruction of Sodom and Gomorroh had such an interesting after-story !!