I just started working with my White Unibody and realize only one audio port. With my Black Macbook I used a logitech set with two plugs, one for mic and one for sound. I know I could use a USB headset but with only one fully powered usb on the White Unibody I thought I'd ask if anyone found a solution other than USB. I need it for camtasia where I need a self canceling mic to keep the noise to a minimum. Thanks