Anyone familiar with the Yard-Man Revolution? This is a homeowner ztr rider with hydrostatic transmissions. The front wheels are castors as you would expect, but the whole thing is configured to look like a conventional rider mower. You can see it described at http://www.yardman.com/servlet/BrandProductDetail?ID=235&CAT=27&SUB=76. The mower is about $1600 at Tractor Supply. I have about an acre in grass. My current, elderly Craftsman 42" is on it's last legs, and I sure would like to be able to mow side-by-side tracks instead of just spirals and odd patterns.