Another important thing to remember is that even if the ban does sunset (and I believe it will), the antis will surely be back again. It would certainly be in our best interests to make sure that it can't make it to the President's desk regardless of who that President is.
We have a 14-19 vote lead in the House; but we are down by several votes in the Senate. We lost the amendment vote 52-47 in March.
Luckily for us though, four of the people who voted against us are retiring from pro-gun southern states (Louisiana, South Carolina, North Carolina, and Florida) and one of the ringleaders, Sen. Tom Daschle is in a tight reelection race where gunowner turnout can easily sink him.
If we can get gunowners to vote their guns in these races, we can easily make the next two years AWB-proof regardless of who ends up in the White House.