How Can You Make Lots Of Coffee?

quoll asks: "I work for a software development company which is entirely Linux based, and tries to release all of its code as Open Source. It's a great place to work, and I've just been asked to help make it better. After going from 12 people to 19 we suddenly don't have enough coffee making capacity, and I've been asked to research a coffee machine which can keep up with the expected increase in demand. Unfortunately I'm only familiar with feeding coffee to small groups, using drip-filters and the like. I suspect that we could use an espresso machine, but I'm concerned about the need to spend 10 minutes to make a single serving. How do other companies provide large quantities of nice (ie. non-instant) coffee? What sort of machines do people recommend?" Yes, I know that this is under the "Java" topic, but it gets so underused these days that it was getting lonely, and the icon is rather appropriate, yes?