I have a video of a sampling pad I made out of a cut up Rock Band drum set. I just put it on a piece of plywood, wired the cut off pads back to the main part, and I'm about to paint it to match my white and gray kit soon (hopefully)
Here's a video: http://www.facebook.com/video/video.php?v=2031219102610
(here is the program to use the pads with the computer: http://andrewrudson.com/main.php
It's pretty convenient, because I also can play our into MP3 from it, since it's going directly into the sound board.
Just thought I'd let you know of some alternatives. ;)