Kodak Medium Format Slide Projector A Nikon D80 With Multiple Goodies Attached, Or The New Kodak Z980?

A Nikon D80 with multiple goodies attached, or the new Kodak Z980? - kodak medium format slide projector

I am a student and public affairs specialist at the National Guard. Part of my job is to become a photographer ... not to mention, found his passion, I found a gift.
I want a camera for my birthday, I'll pay half of the parents, while paying the other half. I trained with a Nikon, and really like them.
I have a Nikon D80 with 18-70mm and 70-300mm, 2 memory cards, tripods, a transport case and a cleaning kit for $ 800.
My other option that someone is trying to convince me that it is better to use the new "SLR racket" Kodak Z980 which a 20-600mm zoom functions, and go on an aperture of 2.8. but not in a position disposable lens for $ 400. I try to think long term to term benefits.
What is the best buy?