Hey Ulala? Nice looking pad! 
No seriously, I used to play a lot on these things when I was in high school. Haven't been on one since - I think they require a degree of fitness to use properly.
Where do you get the parts from?
Thanks. They're both made out of plywood, some fiberboard, sheet metal (stainless steel or aluminum, whichever is cheaper at the time), the contacts are made with 26 ga. galvy, some Cat5, screws, and a whole lotta duct tape. The arrow graphics are available online, but I change the colors with photoshop and take them into Kinkos.
Do you use that with a PC?
The one I'm passing off to a friend is for X-Box, and I have two for PS2 myself. You can wire them for PC though (usb), they use some program/game called Stepmania.
All I wanted to know was what the hell Dance Dance Revolution is! Assume I've never seen any explanatory commercials for it (which is true). In my shoes, wouldn't YOU go
?
Sorry bud, like Maeg, I figured most everyone had at least heard of it. That, and based on the previous tone of responses in the thread, I thought I was getting another "wtf is your problem" response. Sorry.

I'm impressed. Now build one that covers the entire floor, and where you can control various electrical devices (TV, lights, etc) through the appropriate funky dance patterns.
If I remember correctly, someone was working on something similar to that description. It looked more like a disco floor from the 70s, but the idea was the same.. can't remember what exactly they used it for though, some other DDR-esque game I would imagine.
Anyway, thanks guys.
