I own about a dozen different nikon cameras. Of the pro-line of cameras the F2AS would be my recommendation, but it's kinda expensive ($200 or more). The other versions of the F2 have older less reliable meters, and probably aren't worth the trouble.
The FM and FE series cameras are good budget entries, the FM and FE sell for as little as $50
ebay--the FM2 and FE2 go for a little more, the only real difference being a 1/4000 max shutter speed vs. 1/1000. The FE and FM are very similar, the difference being that the FE has an aperture priority mode, and a needle meter instead of a led meter. I prefer the FE myself.
Look for something with a 50mm f1.4 ais lens. That lens is worth around $120, if you want to spend less, the 50mm f1.8 is okay and sells for $50 or less. If you have a nikon digital SLR you can also use those lenses, provided they have an aperture ring and are not "DX" lenses.
Of course, if you really want to go old-school, and can live without a in-camera light meter, go for the original nikon F. Stay away from the metered versions, as those meters rarely still work or are reliable. The non-metered versions are nearly indestructible, and will teach you a lot about photography having to rely on your eyes and brains to meter instead of electronics:
A nikon F with the standard prism can be had for less then $200.
For a flash I'd recommend the trusty old vivitar 285hv or 283--which is cheaper. The 285hv can be used on your modern cameras as well without any voltage concerns. I've used the 283 on my modern cameras without any problems, but supposedly they have a higher sync voltage and aren't recommended for modern cameras.
A few more things to remember:
1) Black nikon bodies cost a little more, especially black F series cameras
2) Try to stick with AIS or AI lenses. If the lens has solid "rabbit ears" it's likely a pre-ai lens that won't work on the newer cameras. There's an excellent serial # database for nikon lenses online, google it.