I planted all semi-dwarf treees---a Kiefer pear, two varieties of cherries, a Mount Royal (self-pollinating) plum, one Honeycrisp Apple, one Redwell, one Honeygold, one Haralson and two Prairie Spy. The Prairie Spy were a real find--they are an older variety almost impossible to find, but one of my very favorite apples. I finally found a source via Craiglist in LaCrosse, WI, from a fellow who grafted them and the Redwell. They are only sticks about 3 feet tall now, but they only cost $5. I hope they catch up in a few years.
I was warned by John, the orchard expert at Sargents Garden Center where I am working, to watch out for deer nibbling them. I don't know if deer will be nearly as big a problem as our darn cows, who seem to be irresistably drawn to these trees and have devoured a few leaves.