Nikon 50mm f/1.8 D AF NikkorI got mine here.
This is a very fast prime lens that is so affordable I think that every Nikon shooter (who doesn't use a weird pseudo-DSLR, like the D40 or D60) should run out and buy one now.
If this lens isn't in your camera bag, then you are missing out on what owning a Nikon camera is all about.
This lens sells for around $100US brand new with full 5-year Nikon USA warranty, which is a total steal for a lens this good.
Maximum Aperture: f/1.8
Minimum Aperture: f/22
Although the diaphragm is has only 7 blades, the bokeh is very pleasing with this lens making this a good lens for portrait photography.
This lens is super sharp and is a joy to use. The quality is amazing for a lens this affordable.
Following are some sample photos to demonstrate the power of this type of lens and some general uses which will likely yield good results. If you shoot things like these, then this lens may be a good one to think about adding to your camera bag.