If you want a very cheap but excellent quality "normal" lens for your crop sensor Nikon camera then I highly recommend the Nikon AF-S 35mm f1.8G DX. Here you have a lightweight and handy piece of glass that is sharp all the way from f1.8 but will not break the bank. I like to use it for anything from portraits to landscapes and it never lets me down in terms of image quality.
Since I bought it the second cheapest of Nikon's lens lineup has almost always been on my camera and sees more use than any other lens I own. No zoom? Who cares, at the price it outperforms every other Nikon lens ever made at simple IQ per $! Zoom by walking back and forth, the exercise will do you a lot of good... ;-)