Currently, not very many.
SLR:
Nikon F5 (actually in my hands, as in, I can grab it and shoot with it)
Nikon F FTn (2/3rd's paid off - should be paid off by the weekend and then shipped out next week)
Pentax Super A (bought this for a friend - still need to get the paperwork necessary to cross the border into Canada and deliver it to him)
(...)
Nikomat FTn parts camera
Nikkormat FT2
Nikomat FT2
Nikon F
Nikon F2A x2
Nikon F3HP
Nikon F3P
Nikon F4
Nikon FM x2 (one black, one chrome)
Nikon FM2n x2 (one parts camera, one frankenstein camera)
(...)
2 Nikkormat FT bodies (one working, one donor)
24 Nikkormat/Nikomat FTn bodies (some functional, some parts)
16 Nikkormat/Nikomat FT2 bodies (same as above)
4 Nikkormat FT3 bodies
3 Nikkormat/Nikomat EL bodies (two worked, but weren't that great, one had dead cells)
3 Nikon FE bodies (one worked, two parts)
2 Nikon FE2 bodies
9 Nikon FM bodies (some parts, some ok)
3 Nikon FM2 bodies (early model - one good, two parts)
22 Nikon FM2n bodies (two parts bodies)
13 Nikon F bodies (two junkers)
12 Nikon F2 bodies
12 Nikon F3 bodies (two Press versions included, and two parts cameras)
15 Nikon F4 bodies
5 Nikon F5 bodies
(...)
You need to try a Canon... Too much N*** stuff can be bad for your health. You know, having to twist the focus ring in the wrong direction, having to mount/unmount lenses in the wrong direction and so...
Here's my
guide to Nikonitis therapy
If you like ____ Nikon camera, switch to ____ Canon camera to avoid Nikonitis.
Nikkormat FTN/FT2/FT3 ----> Canon FTb
Nikkormat EL -----> Canon EF
Nikon FM ----> Canon FTb
Nikon FG ----> Canon A-1 or T70
Nikon EM ----> Canon AV-1 or T50 or even T80
Nikon F -----> Canon F-1
Nikon F2 ----> Canon F-1 or New F-1 (your choice)
Nikon F3 ----> Canon New F-1
Nikon FE2 ----> Canon New F-1
Nikon FM2 ----> Canon New F-1
Nikon F4 ----> Canon T90
Nikon FA ---> Canon T90 or the T70, which is as ugly as the FA but not as advanced.
Nikon FM10 ---> Canon T60 (heh)
Note: If in doubt, choose Canon New F-1.