If I were you KD, with your size of drive, I'd take a look at the Ariens Professional series. Not sure if Toro or Husky have a similar line. Mind you, it appears you've beat the hell out of your Toro and it lasted 13 years, so it doesn't seem you can go wrong that way either.
Like I mentioned previously, on the outdoor power equipment forum I posted earlier, Ariens and Toro were spoken very highly of. It may be worth your time browsing the forums there and seeing what is the latest and greatest. I haven't spent any time on there in a few years.