I'm looking at getting a new GT54LS. I've gotten a good price on it and sold my old Craftsman. If I can sell my Stanley I'm going to go get it. It is a 27HP B&S engine 54" cut and foot operated hydrostatic. On their website, the description of the transaxle says it is made by Tuff-Torq and is "ground engaging" which I take to mean that it is capable of pulling a plow, blade or harrow. It does have the differential lock as well.
List is $3150, I was priced it for $2961 out the door. I guess we will see what the next few weeks hold.