This is a huge monster I built back in 2008.
After popular demand I hereby show how I did. Can't find all pics so this is all we got left.
Ikea Kvartil (discontinued)
12 40W E27 lightbulbs
12 E27 Sockets
2 Light dimmers
Some wires made for lamps (2x1,5mm2) flatcable.
2 70x40mm angles
Some screws and bolts.
The lamps are connected to each other via the dimmers, but in two different goups since I wanted to controll the lights, alternate switch of so I could get half the power.