I love the game too. I haven't completed it yet, I've mostly been doing side quests and generally wreaking havoc. I'm still looking forward to the future DLC for this game as well. The stuff they hinted towards in Dead Money makes it sound interesting, like the supposedly epic battle between you and another courier "bearing the flag of the old world on his back" at the Great Divide and the possibility of finally coming across the Burning Man.
EDIT: whoops, my bad. I just noticed the last post date. Sorry for necroing >.<