FWIW....my take is that there are two possible scenarios.. One is that Bush/Cheney decide on a hands/off policy for 2008..that is they do NOT meddle in the primaries, or, the other is that after the 2006 elections..especisally if the GOP gains a few more seats in the Senate, then Cheney could retire..allow Bush to name his VP..it'd then be a fairly easy confirmation...and that person would have a leg up for 2008..
I could see Marc Racicot getting the VP nod if Cheney retires.
He'd be OK, but not my number one choice.
Who knows??