I have a NH TC40DA. 40 Hp and hydrostatic. I love it for loader work. But if you are going to do much farming, you don't want to go with hydro. Gear drive is what you want.
Sounds like you might be doing more loader than farm work. You can add a lot of weight to a tractor in various ways like filling the tires or even attaching a 55 gall drum filled with concrete to your three point

. But most important for loader work is having 4 wheel drive.
And widen those wheels. Whatever you do, if you have any hilly ground, set the wheels to a WIDE position. You will be amazed how much more stable the tractor is. Factory settings are for shipping (narrow width), not for using.
If you are thinking it might knock down trees, probably not, unless they are really small. You need something big for that. But if you are just doing light grading/snow removal, clearing brush, moving loads of dirt, etc. 40 Hp should do you fine.
Also, consider a front
grapple on that bucket. I wouldn't go back to a simple bucket. You can grab logs, piles of brush and even use it to hold extra dirt in the bucket. Highly recommend a
grapple to anyone doing loader work. Try "Add-A-
Grapple" since they just bolt on. You will need an extra set of hydraulic couplings to operate the cylinder. But WELL worth it.