Welcome to the MU!
As always great responses from all.
I also recommend finding the tractor that will fit your needs and then buy one size bigger. The BX and The B-20 Series have good maneuverability but the B-20 series has a little larger tires which will help in the woods. I also recommend going to the 60 inch mower because it sticks out a little farther for getting a close trim around things.
Kevin
Emerich Sales & Service - Kubota,Cub Cadet Yanmar,New & Used Tractors,Toro,Exmark,Mowers,Parts