I just purchased the Logitech QuickCam Fusion from my local Staples store. I knew nothing about the various webcams, or close to nothing, having sort of given up on the whole category about five years ago after a round of testing. At that time I found the cameras fussy and overly sensitive — not worth the hassle.
But, with the new wave of laptops coming with built-in webcams, I expect that videoconferencing will become popular, and so I purchased one for my home workstation.
Overall? About the best I can say is that there are no major hiccups yet. I still get that annoying problem wherein two applications (such as QuickCapture and Windows Live Messenger) can’t use the camera at the same time. There must be some sort of architectural problem with device virtualization behind that ongoing irritation. The other, more minor issue, is that the design of this particular webcam doesn’t work that well with my 24″ Dell LCD — the top of the LCD is about 1.5″ deep, but the webcam is expecting a thin laptop screen (I think), which means that the “bar” hanging off the back of the webcam doesn’t really do it’s job, and in fact ends up dragging the camera down like an anchor. This is an easy problem to fix with a little MacGuyverism.