I just called a local hardware store for a quote. They quoted me $14-17 for windows and $17-20 for a screen door, depending on the kind of screen you choose.
If you are satisfied with a CRT monitor, you can probably get one for nothing. Most people are moving to LCD and plasma flat screens and discarding their CRTs. A discarded CRT may be free. Flat...
If it's just the glass and it's one of the side windows, it should be fairly cheap. I actually just got mine replaced today and it was $175 for the front passenger window. I also got quoted for a...