I'm not a big flash guy although I am guilty of having spent more money than necessary on Flash equip. in my film days. I need a flash that is excellent for fill flash, good enough for a wedding (supplemental photo's only) and can be set for fractional power output in manual mode (can the SB600 do this ?). It's easy to say just get the SB-800 but I won't use it a lot and I would rather spend the extra $130.00 on something else (if possible). Any good comparisons between the two from experienced users would be appreciated. Note: This would be used on my D200. Thanks in advance. - Jeff