This image was rendered by Vladimir Koylazov with VRay for 3dsmax using photon maps and irradiance caching. Rendering time was about 2 minutes on a dual Athlon MP 1800+ (1533 MHz) with 1 GB RAM.
I am very curious what other global illumination renderers are doing with this test case. I would be very pleased if someone could render it with Mental Ray, Brazil, etc. and send me the results. Visit the Download Section and get the scene file in various formats for importing it into your favourite renderer.
Another comparison with this test scene can be found at www.buildart.com/render_comparison.htm.
Currently it shows renderings of Truespace, Bryce, Art*lantis and Archicad with AV-Works.