That would likely mean that McCain would be your President.
Even if all of what you said is true. McCain would not be President as he did not receive 270 electoral votes? Wouldn’t that be true?
I presume that if Obama were to be elected that Electors pledged to vote for him would be freed to vote for another name on the Presidential ballot. McCain would probably be that choice, but it could theoretically be any of the others on the ballot in their state.
He needs to receive a majority of the Electoral Votes cast, so I think that if 0's votes are disqualified, McCain might get a majority. If 0's votes are counted even though he is not eligible, then the election passes to the House because "nobody" received a majority. If there are enough faithless electors that vote for someone else - McCain, Biden, Clinton, Mickey Mouse - we could get anybody, but I doubt they would dare since that would put the blame for 0 being ousted directly on the Rat party to the perception of the voters.