We were evaluating webcams for doing video conferences over Skype between the OLX New York & Argentina offices and selected those two.
They are 2 Megapixel, they work well in varying lighting conditions, the quality is great and they both cost around $100.
Buy the Pro 9000 if you have a screen or TV to place it on top of. Buy the Orbit AF if you are placing it on a desk and/or want the motorized tracking feature.
I saw some video on YouTube.com from both cameras, and it seems like the AF was somewhat better quality that the 9000. This could have been due to the person’s computer (more RAM, etc), but it was clearer and it has much less “frame stuttering.”