Clinton/Richardson (Democratic)
Giuliani/Barbour (Republican)
Paul/??? (Libertarian)
Tancredo/Roy Moore (Constitution)
Bloomberg/Hagel (Unity)
Dobbs/??? (Independent)
McKinney/??? (Green)
Consider though, that of the 4 3rd parties, only Paul would probably be on the ballot in all 50 states. This would especially be a problem for Bloomberg as Unity '08 seems to have no concept of Ballot Access Laws, though the fact that he's a billionaire should be sufficent to overcome that. Of course, all that depends on how much Bloomberg actually wants to be president.
Also, props to anyone who can suggest running mates for Paul, Dobbs, or McKinney.
First off, Tancredo and Lou Dobbs overlap enough that if one ran, I don't think the other would. Second, the McKinney will do abysmally. You're right about the ballot access thing. Clinton would win, and no third party candidate would break 10% (Bloomberg might get into the high single digits) or carry a state.
