Check out Zero-turn Mowers

http://www.motherearthnews.com/homesteading-and-livestock/zero-turn-mowers.aspx

Thinking you might need a new mower this year?

Be sure to try out the zero-turn mowers that are now widely available, especially if you have lots of trees or other obstacles to steer around. The “zero-turn” steering mechanism is so quick and nimble that it actually makes mowing around stuff fun instead of a hassle.

You’ll find a full report and a list of manufacturers at: Zero-turn Mowers: Faster, Easier Mowing. And there’s even a brand-new all-electric Z-turn available — you can read all about Hustler Turf’s Zeon at Three Great Tools: Rogue Hoe, NRG Trowel and Zeon Electric Riding Mower.