I recently purchased a machine of this type for about 250 that I am delighted with. The scanner includes OCR software and it is incredibly easy to use. Every action is prompted on screen or via a printer display. It's worth checking out. Monitor The standard size of monitor currently appears to be 17in.
Larger models are available and useful for graphics or DTP work.
Cheap deals generally include a 15in monitor. It's nice to have a large screen but not essential. Access to the Internet can be almost free. Your machine must have a modem and be connected to the telephone line. If you buy one with a built-in modem, it will have a cable that you connect to a telephone socket.