Hey guys how's it going this is my first post so take it easy on me . I'm in my last year of electrical engineering technology, and we need to design and construct a final project. On the list of possible topics was the idea of a bio-med game interface. It would be biomed probes detecting muscle activity to control a video game. Rather than getting an open source game, rewriting the code, building a cable to connect it to the computer, and etc I found an old think geek DIY pong game. http://www.thinkgeek.com/geektoys/science/8546/ (avaible via partsexpress.com) So I want to replace the buttons with connector probes attached to circuitry. I figured I would have the biomed sensors on the arms going through a high gain op-amp, and that through a ADC. Whichever output became high when then arm was flexed I would tie to a relay or something to close the switch. Simulating someone pushing the buttons. I'm great with the amplificiation of volages, transitors, and such. However if anyone can any point me to where I would purchase biomed probes and any documentation you might know of it would be much appreciated. I know nothing about biomedical stuff. How an arm would react when flexing versus not flexing and reading signals from it. Any input would be much appreciated. Googling has gotten me nowheres and I'm really lloking forward to getting started on the project.