Simple interior visualization with Cycles

I was just looking around my drafts for articles yesterday, when I found a simple and interesting project posted around last christmas on the blenderartists forums which I completelly forgot to publish. I know, shame on me. Anyway, the project was posted by an user called Cadvis and shows a really simple interior visualization rendered with Cycles. What makes this project interesting? The artist did acctually posted his light setup, which might be useful for artistis learning Cycles. Along with the placement of all light sources, you will find the emission values for their respective materials.