The Logitech QuickCam Pro 9000 is currently (2/1/2009) one of the highest rated webcams on CNET as described below and it lives up to it's billing. As one of the few webcams to provide 2,000,000 pixels and a Video Capture of 1600 x 1200, images are clear with DSL or better connection speeds.
From CNET
http://reviews.cnet.com/webcams/logitech-quickcam-pro-9000/4505-6502_7-32509550.html?tag=mncol;lst
The good: Carl Zeiss lens and Logitech's RightLight technology combine to deliver superior image quality, especially in low light; 2-megapixel sensor lets you shoot video up to 1,600x1,200 resolution; included QuickCam software is polished and easy to use; flexible stand works equally well on top of a monitor or a laptop or resting on a desk.
The badThe bad: QuickCam software isn't optimized for Macs, so you're left without the audio and video optimization technology and, less importantly, the goofy video effects and filters.
The bottom lineThe bottom line: The Logitech QuickCam Pro 9000 offers a winning combination of stellar image quality, easy-to-use software, and a sturdy, stable stand. It's our Webcam pick for desktop and laptop users alike.
Specifications: Gross sensor resolution: 2,000,000 pixels ; Software type: Logitech QuickCam , Logitech Video Effects , Drivers & Utilities ; Cables included: 1 x USB cable - 6 ftGet more detail about Logitech Webcam Pro 9000.