In the last election (2004), I was hearing alot, at least in Christian discussions, about another third party, the Constitution Party, with their candidate Michael Peroutka. Radical conservative. The premise, of course, is that the Republicans were now just the same as the Democrats, not strong enough on abortion, still favoring large govt. etc. Also, these were "paleoconservatives" who were against the war.
The scary thing about it, was that the moderates who opposed it in the discussions did so only on the basis that he would not have the chance to be elected, and the votes would be "wasted" and end up going to the Democrats.
Now, it seems the whole steam for that party has fizzled (though he remained a write-in candidate in Georgia for this year), and it was back to "the lesser of two evils" (i.e. McCain and the GOP) for the religious conservatives.