Fords can be reliable if you drive the right Fords. Anything with the 3.8L V6 will need a new head gasket, which includes almost all Windstars (you could get them with a 3.0 but you wouldn't want to).
I'd have done the timing belt work on my car myself, but I don't have the tools or facilities to do it. $891. Fucking shit. It looks like $372 to have the windshield done (I don't have the right stuff to do that right, either). Otherwise, the only thing I've ewer had to do to the car is replace the battery once, and the usual maintenance stuff (oil, filter, plugs, air filter, etc.).