Most homesteads need a sturdy mower, a garden tiller and maybe a way to clear snow from driveways. But buying and maintaining three or more engines can get pretty expensive. Standard tractors with various attachments may be out of reach unless you farm for a living. A two wheeled, walk-behind tractor may be the perfect (and more affordable) choice for many of us. With bigger engines than most single-function pieces of power equipment and the ability to accept a wide range of attachments, they allow you to buy and maintain just one high-quality engine to perform a variety of tasks. We tested two leading walk-behind tractors — the DR Field and Brush Mower and the BCS Walk-Behind Tractor.