Across the dead earth.

Before I forget, on Lead adventure forum theres aguy called Richard Chappell who is beta testing a set of apocalypse rules and is looking for playtesters. Its in the post apoc section. I have downloaded the rules and they are well worth a look. He is aiming to develop a campaign driven system with progression of characters as opposed to static statlines. You should give it a go. Its great to see such interest in the genre.