At a time when so much manliness is played out on computer keyboards and TV or videogame remote controls, it takes a certain degree of grit and guts and plain pigheadedness to pull up stakes and move to the country. For those brave souls, the backward-looking gentleman farmers of our fast-forward-looking age, Roger Welsch has a few choice words. To homestead in the Old West, the saying went, all you needed was forty acres and a mule. For the 21st...