a) If you don't want FAX, go for a Samsung available for 8K (Model number I don't remember).
b) If you are going for HP, ask about the Wifi option. It will help for 2 computers too, (provided you are using Wifi in office). With Wifi you can keep the printer in a central location in office, and everyone can print to it happily, without printer being close to computer.
If you don't need colour, always go for Laser. Always.