Choose between a tractor and a riding mower. A capable lawn tractor with a front-mounted engine and front-steering wheels is ideal for big lawns of a half-acre or more. Most of the best tractors we tested come in under $2,000; a few with tight turning cost $1,000 or so more.

Zero-turn-radius mowers typically have rear-mounted engines, two levers instead of a steering wheel, and rear-steering wheels that let them turn on a dime. But even consumer versions often cost $3,000 to $4,000, And as we found, their swiveling front casters (think supermarket shopping carts) can make steering tricky down steep slopes. Rear-engine riders (about $700 to start) are compact alternatives to walk-behind mowers for smaller lawns.
 
Consider the features you want. An electric power takeoff switch lets you engage a tractor's blades without pulling a lever. Two tractor blades in the cutting deck tend to mow and mulch more smoothly than three (small riders have one). A fuel-tank level that's visible from the operator's seat or a fuel gauge tells you at a glance when the level is low without your having to leave the seat to check. A high-back seat is typically more supportive and comfortable than a conventional seat.

When you're out in the yard, don't neglect safety. Wear long pants, boots, and eye protection. Keep small children and pets away. And before you buy a zero-turn-radius mower, read our report on how hills pose risks for some riding mowers.

Noise is also a safety concern for this riding mowers and tractors. We didn't demonstrate this equipment to Gwendolyn Bounds, the author of yesterday's story, when she recently visited our Yonkers, New York, headquarters, but she would have learned that all gas-powered tractors and riding mowers we tested are loud enough to require hearing protection.

Of course, no ear plugs or earmuffs will protect you if you've got the volume on your iPod cranked up all the way while you cut the grass.

—Ed Perratore

Essential information: Check out our ratings of lawn tractors and riding mowers (available to subscribers) and discuss them in our forums.