Thanks for all the info. I will be looking at a '99 8780 (sorry, not a 2000) vs a '02 8780 XP. When I used a '02 XP last fall, there simply was no comparison with my 8570. If I go with the straight 8780, I want to be sure to not give up some of the performance I saw in the 8780 XP. HP is an easy fix, and not a concern. Improved wear points are also not a big concern in my application, nor are comfort and convienience features. From what I have seen, and what you guys have told me, my concerns lie in the 2-speed gear box and front beater. I know I can update the 8780 to include these, but at what costIJ The XP's rotor would take anything I could shove into it, including raggy, green stem soybeans (conditions that would stop my 8570 in its tracks). I have to assume this comes from the increased HP, constant speed rotor, improved front beater, and more torque from the gear boxIJ To sum it up, I'd like to save several $K by going to an 8780. How much difference does the gear box and improved front beater really make in tough harvesting conditionsIJ What would be the cost of updating the 8780IJ I'm asking you guys these things before I go to the dealer, so I can be somewhat prepared, and your experience is priceless. Many thanks.