In article , mpt95mos@tornet.pt.hk-r.se\ says...
>I am in the business of maybe shanging camera system.
>The biggest competitors are Nikon and Canon (as always :-).
>The system is not AF, and will probably not contain any zoom lenses.
>The bodies I have narrowed down to are:
>Canon New F-1
>Nikon F3HP (or F2)
>Lenses are/would be 50/1.4, 28/2.8, and a 100/4 or 2.8 macro.
>What I have now is: Canon 50/1.4 SSC FD, Canon 28/2.8 SC FD.

Since you already have two of the three lenses you want as Canon,
it would make sense to stay with Canon. Though, IM(NS)HO, Nikon
has better consistency in the quality of design and manufacture
in their lens line, and it would be hard to equal these three
Nikkors: 28mm f2.8 AIS, 50mm f1.8 AIS (metal version), 105mm f2.8
macro. If you do go to Nikon, the F3 offers some advantages in
viewing, otherwise the F2 and F3 have slight plusses and minuses
relative to each other (I prefer the F3).
Hope this helps.