Adafruit customer Dagthomas installed an Adafruit Adalight System behind his computer monitor while waiting for the Diablo 3 servers to come back online. The results are very impressive, especially when casting a spell that hits the edge of the monitor. This should certainly help brighten up some of those dark early levels in the game as well.
Check out his writeup on Reddit.
Adalight – DIY Ambient Monitor Lighting Project Pack. Build your own ambient-light addition for a monitor or media PC television with the Adalight project pack! This project pack is for our “Adalight” project tutorial. By running the Processing code on your computer, the halo of LEDs will follow the screen colors to provide an awesome ambient light display that adds pop to TV shows, movies or games!

Printable catalog (PDF)

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I also made a “how does it work” video on youtube about this setup, this time in English(sorta).
Comment by Dag Thomas Olsen — May 25, 2012 @ 4:13 am
Forgot the link
http://www.youtube.com/watch?v=tY1gp1k2Vkc&lc
Comment by Dag Thomas Olsen — May 25, 2012 @ 4:13 am