I can't believe it still works, but I have had an SG2100 that I first used with a 76cm Winegard, have moved to a 1m Winegard, and the thing has lasted the better part of a decade through all kinds of weather with some fairly heavy LNBFs, like the Invacom QPH-031, which is not exactly light.
You probably can't go wrong with a Stab HH120, but they had been a little challenging to find. Apparently Sadoun carries them now. There is also a more robust (metal vs plastic geartrain, etc) version of the SG2100. I think it had a model number of 9000-something.