This is an alphabetical listing of all the train stations with their fare amounts, in English. The cheapest fare is 130Y ($1.30) to go one stop. The most expensive is about 1900Y ($19.00) which will get you all the way to Narita airport, about 2 hours away.
Insert your money (coins or bills) on the right, select the fare you need from the touch screen; your ticket and change are dispensed at the bottom.
Hop on your train.
The red "Priority" seats are for the elderly, handicapped, pregnant and people w/ small children. You have to turn your cell phone off if you are in or near these seats. You are encouraged via frequent public announcements to put your phones on vibrate while on the train, and discouraged from talking on it as well. Its also rude to eat or drink on the train.