anyone ever build a monome?

[GhostofJohnToad]

For a couple years I have tossed around the idea of building a monome or the arduino based open source arduinome.  Curious if anyone here has attempted it?  If anyone has I'd love to hear your experiences and how much it ended up costing.

For those of you who might not know what it is there are links below.  Basically a visual sort of midi-like interface.  I know it's probably more of an electronic music sort of thing,  but I think about music visually and I could see one of these helping me constructing rhythms and what not and getting away from too much mouse-clicking. 

http://monome.org/devices

http://flipmu.com/work/arduinome/

[nzCdog]

Man... that looks awesome!  Crazy idea, you gonna do it?

[GhostofJohnToad]

Yup,  Currently in the the process of gathering the components...  Trying to find a good price right now on 50 Degree viewing angle 3mm LEDs.  I'd love to use ultraviolet, but I'll probably go blue or green.

The fun part/challenge is going to be designing a case.