My uncle has a Ford Windstar. He has 243,000 miles on it, and it doesn't use a drop of oil. Has been a terriffic van, and trouble free, even though he drives it extremely hard.
I have another friend that has a Windstar, about 120,000 miles, trouble free, he loves his Ford too.
I wouldn't rule out any of the GM models either, especially the Astro/Safari van, which uses a truck platform. Excellent vehicles, heavy duty, comfortable, reliable, if you can sacrifice a little gas mileage.