I've just taken delivery of this webcam, and am seriously impressed. I have tried various webcams in the past, and while most of them captured a reasonable image, they were all seriously below the standard one would really want. The NX-6000 isn't. It captures video at 2MP resolution, which is very high quality, and the image is clear, crisp and well coloured. The still image capture is 7.2MP (assisted by software), and might as well be taken by a proper digital camera. It is genuinely high quality.
The webcam is very easy to install; even with Windows Vista, everything installs itself and you're ready to use it with Windows Live Messenger straight away. It automatically adjusts settings to suit the light, and I couldn't fail to notice the superior quality of the image this resulted in. I turned off the main light in my room to check this feature, and the image adjusted instantly to a properly exposed version. Previous webcams, even those with auto-adjusting exposure, have failed to do this adequately.
I am seriously impressed by this piece of equipment, and would definitely recommend it to anyone who is looking to spend reasonable money (c.£45) on a webcam. You might just find one that comes close, but I seriously doubt you will find anything better for your money!