Thanks for the replies! Auto focus means very little to me. I almost never use it.
I'll look into comparisons between the F4 and N90s now. I guessing the cost will be the deciding factor between the two though.
The N90 will be a lot less money. The F4 still goes for $200-$250, while a nice N90 is around $60. The F4 weighs a ton too, but I like the traditional shutter speed dial and other controls instead of the thumbwheels and LCDs of the N90. Lately I have been using my F3 more because it is smaller and lighter than my F4, but it doesn't have the 1/8000 top shutter speed or the 1/250 flash synch if those matter to you.
Fine Art Photography of Indiana and other places no one else photographs.