Going to China? Great, hopefully you can get yourself a wide-angle lens and a long telephoto lens.
If digital camera is out of your consideration list, and you are struck between F80 or F60, I'll say, go for the former. Or better still, go for 2nd hand equipments at cheaper price and save the rest for a good lens! If you are not particular about the photo quality (at least not as a professional critric) , maybe you can consider Tamron 28-300mm lens?
Oh, and remember to get a circular polz filter. And not forgetting extra batteries too. And tripod for long telephoto zoom.. Anyway, enjoy your trip, probably the cold season now, winter ...