aemiller,
For a pond? jrwattjr may have the right idea of a mini-excavator (depending on pond size, as Cliff says). The mid-mount mower issue is why my dealer steered me away from a MMM and toward a finish mower. Still have to remove the TPH links but better than dealing with the MMM.
For digging holes, rocks, stumps..., transplanting (carefully), I am pretty impressed with what the "46" will do off my 4115. As Cliff says, it can move a CUT around a bit (...CLIFF, that's putting it lightly /forums/images/graemlins/shocked.gif, it'll pick the whole CUT up off the ground and pull it right out of the rut I've buried myself in....slowly and safely, ofcourse /forums/images/graemlins/smirk.gif).
Since Cliff's pictures are so pretty (must be much more dilligent in washing off the tractor after working than I am), I've added a couple of pic.'s of another chore the 46 will do, without breaking a sweat (or hydraulic line).
Tom
P.S. (the FEL would not lift this stone over the rise that is on the left and steeper than it appears)