So what I'm looking for is to have a 3.5 mm jack from pc 1 and a 3.5 mm jack from pc 2 into my headphones to listen to two different audio sources at the same time.
How would this be done?
Edit: It's basically this http://www.amazon.com/3-5mm-Stereo-splitter-Adapter-Female/dp/B004D0LTL2 just...