I bought a Microsoft LifeCam VX-2000 - the cost of a webcam in this webcam on sale for $ 20 (vs. $ 40) for my 10-year-old Logitech QuickCam Express, which does not work with 64-bit version of Windows Replace.
At first I was happy. Decent quality, the sound was good. It was a definite upgrade from my old Logitech and from necessary.
I had a problem where the screen just went black. I had no picture at all. I had switch to USB port, everything worked well.
I guess you can do better at the same price or slightly more but if your willing to spend only 20 and to $'re probably using a Webcam, it might be good to buy Microsoft LifeCam VX-2000 - Web camera for the best costs.
For me, I returned it for C500 Webcam Logitech.