@ Marc
I can only tell you, what is written in the prospectus for the following 3 cameras. I have the prospectus only in German.
The Nikon F6 has with AI lenses an "electronic focussing help" (whatever that means). No AF with AI lenses obviously, but no other restrictions.
The Nikon D200 and Nikon D2x have this electronic focussing help too, BUT the AI lens has to have a minimum aperture <5.6
Hope that helps
@ Ming Lee
I am in a similar situation. I have invested all my money in the N-System. Now that I have a Contax ND, it is even more difficult for me to think about switching - even if it would be a new system with new but different Zeiss lenses on it.
Since I have not had the time to really learn all the stuff I need to know to get most out of the ND, I have an "excuse" for myself not to get crazy with all new announcements
It is for sure, that in 2006 Canon and Nikon will again introduce new great DSLRs like every year. But if I find out (as soon I have time to take more pictures), that my ND gives me all what I need at the moment, there would be no reason for me to rush in another direction - no matter which one...
because one thing is also for sure: DSLRs get better and cheaper every year. The more time I have to wait for the switch, the more value I get for my money.
So as long as you do have already a system which fullfills your needs, you are on the sunny side of this planet