I'll second Suess on the 3 pt lift capacity.
I'm not sure a few hundred pounds should influance your decision. Even with a front balast of either the loader or snowblower on my 7610 I think you lose front end stability FAR before you will exceed the 3pt lift capacity. This would probably be true with the New Holland also, since the tractor is of comparible weight to the 7610.
I lift pallets full with wood on my 3pt with a carry all. My guess would be that the pallet (when full) is at or over the 1,058 lbs capacity. (24" past lift pt) I have to back down a small hill to put the wood in a shed, and even with the snowblower or FEL on, I can get the front tires off the ground by jumping on the end of the pallet. Yet, as another stated, I believe all tractor companys rate their lift capacities very conservatively. I'm certain that my 3 pt would lift me (200 lbs) and probably another standing on the pallet of wood without much difficulty. (it doesn't even hesitate to lift the wood as is)
Same with the loader. I have filled rear tires and you lose rear stability with a HEAVY load. I find that I need the filled tires AND my box blade. (about 300 lbs) when I'm moving large rocks, and going down a hill.
Then again, maybe at flat land, all would be ok.
-good luck