Looking for feedback on John Deere X500. I looked at the X320 & X500 at local dealer the other day. I might go back on the weekend and test drive. My scenario is strictly for mowing (I have larger tractor w/ Loader for bushhogging, snow removal, playin' in the dirt and other chores). I mow about 2 1/2 to 3 acres. The terrain is a little rough in spots with some hills and slopes. It is not a finely manicured suburban type lawn. Due to the terrain and the fact that there are not a significant amount of obstacles to mow around, I am not considering a zero turn. I have been using a box store mower (L130) for 10 years which I think I have got my moneys worth out of and I am looking to upgrade. I like the differential lock on the X500 vs. the X320. I don't feel I need the additonal hydraulic lift features, power steering, etc of the X540 or other more premium models. Basically, I am looking for a heavy duty machine that will perform my stated tasks quickly, efficiently, reliably, etc and last a long time with proper maintenenance (which I will be performing myself).