I have the NovaTractor MFZ175 and it does a very good job. Got it late in the season so didn't get a lot of opportunity to use it this year but plenty of plans to use for a long time. I spoke with the designer/builder quite a bit. His name is Jack and he's a regular on the forums.
I have looked at the Novatractor and did some research on it. Appears to be a good unit.
bkrgi: Which quick hitch do you have? That is another confusing purchase. From $99 to $500 and they all look the same? I had the Pats Easy Connect on a previous tractor and it worked, I was not impressed for the price. You had to keep the "rod" connected to be able to change implements and if you forgot to remove it, which I did, the movement of the implement bent it.