Democratic Governors for President?

Governors have won, by my count, seven of the last eight elections. The other was won by a sitting vice president (over a technocratic governor from a, shall we say, politically notorious state), and the one disputed election was between a governor and a sitting vice president. Given that we won't be running a sitting vice president in 2008, should we nominate a governor? One not from MA (the other side can do that)?

And who might that governor be? (As a corollary, should Mark Warner really run for Senate in 2006? And is he charismatically challenged?)

(I assume the standard reasons given for the Governor's Advantage (TM) are familiar enough around here-- executive experience, no congressional voting record, "outsider" image, local touch-- that a parenthetical mention will do.)