Bruce,
Hi-rez means 200 dpi resolution and at least 5-6 inches on a side.
If only 72 dpi, then 17-24 inches on a side.
Blue sky is fine -- as long as your truck is a dark color and the sky is fairly uniform. Even an overcast sky is fine -- anything as long as the background contrasts with the truck and is uniform (I have to remove the background and I'd prefer not to have to do it pixel by pixel -- it could be awhile before you see anything if I have to do it that way).
PapaJ -- Check out the mugs -- I just put a big bolt AD design in there.
Roache -- Dude ... like, whatEVER. Like Marlow says -- you just made enough off that storm to buy the whole web site. Now that you and Bill Gates are hangin out at the Rich Guy Club, why don't you lighten up and show some pity for us workin' stiffs, huh?
John