Gerg, The House is only supposed to break a tie; i.e. 269 to 269 electoral votes. If the Dems were to re-take the Senate, they'd get to choose the VP; i.e. Edwards. Interesting scenario, but rather unlikely.
"I think, that all right-thinking people, are sick and tired of being told that they are sick and tired of being sick and tired. I, for one, am not. And I'm sick and tired of being told that I am!"