Whatever web cam you get, if you're going to be using it for video conferencing, make sure it is firewire, NOT USB 2.0. USB 2.0 has a 400Mb/s throughput, but it is only Burst speed. Firewire is a sustained 400Mb/s speed, and video needs a sustained data rate. So, get firewire web-cams if you want high quality video conferencing. If you are only going to be taking pictures with the thing, buy a cheap 1-2 megapixel digital camera, it'll be cheaper than a webcam and more versatile.