laser music!

So I was looking at nerdy things to do when you are not playing video games or musical instruments and I came upon this youtube video about a guy who took an arduino chip and some lasers and some other goodies and made this thing.  It made me want to go out and buy all of everything to make it.  Now the thing that makes me so excited is that I will be taking a computer programming course along with all of my music courses this semester... I could do something equally geeky with the knowledge that I hope to acquire.  I'll post if I do.  For the meantime though, Enjoy!