It's acutally called a "dj coffin" because it holds two turntables/cd players and one mixer... I had that one custom made so I could be mobile with my stuff--I'm like 1 of 5 people in my city that have a DJM 600, and I don't expect mixing on anything less, so I have to be mobile.
It was custom made from www.djmart.com for approx 300$. With the lid closed with all the equipment, it weighs about 150-200lbs which is like 80-160kg for you non-Americans. In other words, it's heavy as hell, so I should have gotten wheels put on the end of it so I could roll it instead of carry it.
Anyhow, just tell them what kind of equipment you have, what config you want (ex. classic/battle style), and a color, and any other add-ons, and they'll quote you a price. It's fun to drop your stuff in it once you get it ;D They're a tad bit expensive, but they're extremely reliable, good people. I bought a 50 LP record case there, the next day they called me because they ran out, so they sent me an 80 LP case instead.