I know what you mean. If any of most of the proposed candidates gets the nomination, unless they pick Tancredo, I'll likely vote Constitution Party in 08. And I would hate to do so, as they should not run presidential candidates until they get candidates elected to higher offices than state legislatures.
I am horrified at the prospect of Rudy McRomney, but there is no one--NO ONE--in the GOP field who would be even remotely as bad as Hillary Clinton. Do not cast a vote that helps her and call yourself a patriot.