In article <452hmu$5a2@odo.PEAK.ORG>, leejim@peak.org says...
> I'm in the market for some 35mm equipment, and have seen many Nikon
>F3's & F4's for sale. Could someone point out the differences between
>the two, and maybe give me a quick list of features? (..)

These cameras are so completely different that it is hard to know
where to begin.... (I am glad Nikon has the good sense to keep both in the line, since they are good for different markets.)

F3 -All metal, painted exterior(easier to maintain mint for collecting).
F4 -Metal interior, plastic exterior (shows wear, even with careful handling).
F3 -Compact without motor (motor may be added). Motor is noisy.
F4 -Large by any standard (hard to pack, hard to hold [for some of us]).
Has a second (vertical photo) shutter release (in some configurations), but it is too easily pressed accidentally.
Motor noise is moderate, but not quiet. Unusually low camera shake and vibration with shutter release. Maintains traditional camera
controls even though the camera is electronic.
F3 -Accurate, sharp, undistorted finder (rarer in cameras than one would
think). This bright, contrasty finder defines what a reflex finder should be. Accurate manual focus is easy on any part of the screen,
and the lack of linear distortion makes composition easy.
F4 -Accurate, undistorted finder, but the optics required to permit
diopter adjustment of the eyepiece optics produce a less sharp image
of the viewing screen edges (and left and right sides are not equal
in sharpness). The F4 screens are a tad brighter than F3 screens,
but they will fit in the F3.
F3 -Manual focus only (forget the F3 AF), but it is so easy......
F4 -Manual and auto-focus (with AF lenses).
F3 -Metering is almost entirely within the area of the large circle in the finder - has manual and auto (with lock) modes. Since metering
is entirely within the body, changing viewfinders does not affect
metering (and PC lenses are metered properly even when shifted).
F4 -Metering pattern is selectable among spot, multi-segment, and center-weighted - has manual, auto, shutter-priority, and program modes. The spot meter is within the body, the other patterns may
be lost when changing finders (PC lenses are metered inaccurately
when shifted off-center).
F3 -TTL flash metering is limited to a maximum of 400 ASA. All shoes
and cords for F3 TTL flash system are unique to the F3 (they are unusually sturdy, and parts lock together for reliability). TTL
fill-ratios may be set up by using a remote cord or the AS-7 shoe, but this limits the maximum useable ASA speeds to even lower values.
The maximum synch. speed is 1/80 second.
F4 -TTL flash metering is more developed in the F4, and the maximum
synch. speed is 1/250 second.
F3 -All lenses ever made for Nikon reflex bodies (except the 21mm) will
fit and meter with the F3 (except non-retro. fisheyes will not meter).
F4 -Same, except that non-AI and AI converted lenses may not be able to use some of the metering modes and patterns of the F4.

I have probably forgotten some other important differences, but what
can you do.....
Hope this helps.