Nikon N90S for Color Slides - 70%
Nikon FA for B&W - 30%
(Percentages in terms of film usage)

Lenses:
Nikkor 24-50mm AF-D f/3.3-4.5
Nikkor 70-300mm AF-D f/4-5.6
Nikkor micro 105 AIS f/2.8
Nikkor 1.6x Teleconverter
Nikkor 50mm AF f/1.8