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well I have (had D70>80) now D300 & D7000, but in a dilema over lens given my Budget? Anyone out there point me in the right direction? love candid-long lens shots ..had a 500 mirror nikkor >loved it,but f8 &MF :-(( sold it ,got a 400 f5.6 sigma prime>hated it &sold it .Thinking of older nikon 2 ring AF 80-200 f2.8 @$700,or older really solid nikon 300 f4 @$500! & hope either of them will stand the crop, or any ideas under $700(£500) ????Ta appreciate some pointers.