Two-Party Politics and Representative Democracy

So, I've been thinking about this November, and how I really cannot, at this point, vote for John McCain. Perhaps he can sway me down the road, but if I had to vote today, I would probably be voting for Bob Barr, because Wayne Allyn Root lost the Libertarian nomination to him. But the thing is, I really don't want to vote for Barack Obama, and that is essentially what a vote for anyone other than McCain is in our two-party system.

I almost wish I had two votes: one for, and one against. The negative vote would go first, and the positive vote last (a la Survivor?). Essentially, I would like to vote against Obama (and hope that a majority would do the same, knocking him out of the race) so that I can feel more comfortable voting for someone other than McCain. Would you like to do that?

I think that, come November, my vote probably won't count for much, living in the heavily Republican state that I do, so that should ease my cares a bit, and in fact, this kind of negates my whole argument. I voted Gore here in 2000, and I don't think I'll vote Republican in 2008. So, I'm screwed at both the party and state level, thanks to two-party politics and representative democracy.

C'est la vie! I just hope we can all vote our conscience this November. This, I feel, is the most important thing, no matter the result. What do you think?