The video on the right demonstrates what we are trying to achieve.
Scramtronic explains how to do it.
Hardware:
We will use a guitar hero drum kit for a PS2.
We will use an arduino kit to interface since it is the cheapest option and the most versatile.
We will connect it up with a PC.
Software:
We will only use opensource software so it is free.
There are various example projects on the web which describes how some people have completed the project.
One list of software is: MidiYoke + Edrum Monitor + FruityLoops + Addictive Drums
MIDI Listener: Hairless Midi
Connector: Midi-Yoke http://www.midiox.com/ This is old software and will be tricky to install so we should look for an alternative.
VST: MiniHost, by TobyBear. http://www.tobybear.de/p_minihost.html.
Drum sounds: http://www.vemberaudio.se/shortcircuit.php