For my Mac, I find that EpocCam on my iPod Touch (and iPhone) is very good as a webcam, especially in low light. For mounting it, this looks good: SHAWE Phone H

For my Mac, I find that EpocCam on my iPod Touch (and iPhone) is very good as a webcam, especially in low light. For mounting it, this looks good: SHAWE Phone Holder Bed Gooseneck Mount