Most of what you'd need to know here.
And here's some good ones for shooting with.
Standard Zoom - Fixed Aperture.
35-70mm
http://www.keh.com/camera/Nikon-Manual-Focus-Zoom-Lenses/1/sku-NK070102010120?r=FE
36-72mm
http://www.keh.com/camera/Nikon-Manual-Focus-Zoom-Lenses/1/sku-NK07009000347N?r=FE
Primes
20mm
http://www.keh.com/camera/Nikon-Manual-Focus-Fixed-Focal-Length-Lenses/1/sku-NK06000002140N?r=FE
28mm
http://www.keh.com/camera/Nikon-Manual-Focus-Fixed-Focal-Length-Lenses/1/sku-NK069990204500?r=FE
50mm
http://www.keh.com/camera/Nikon-Manual-Focus-Fixed-Focal-Length-Lenses/1/sku-NK069990216320?r=FE
100mm
http://www.keh.com/camera/Nikon-Manual-Focus-Fixed-Focal-Length-Lenses/1/sku-NK060102000260?r=FE
135mm
http://www.keh.com/camera/Nikon-Manual-Focus-Fixed-Focal-Length-Lenses/1/sku-NK069990218260?r=FE
200mm
http://www.keh.com/camera/Nikon-Manual-Focus-Fixed-Focal-Length-Lenses/1/sku-NK06009010513N?r=FE
Personally, I think non-AI is absolutely fine as long as they are in good condition and have good coatings, and have the best focusing rings - and is the most affordable. only go AI or AIS if you really care about the coatings a lot.