The following is my personal OPINION only ;-)

There are 2 kinds of cameras that that support ALL LogiSphere features (including mechanical Pan/Tilt). Those are Creative Live Motion and Logitech Orbit (called Sphere outside the US). I own one of each, and they both cost about the same (approx. US$ 120 here). The Orbit is the higher quality device, with better video resolution and also higher precision Pan/Tilt. I would recommend it.

Having said that... there is a problem. We are finding out that Logitech has recently revised the Orbit camera, and the "new" Orbit only works with the Logitech Driver 10.0. People are reporting major issues with the 10.0 Driver. Please see THIS ANNOUNCEMENT for details on the driver problem.

So until Logitech fixes its driver (which obviously neither the maker of LogiSphere nor I have any control over) I can't recommend the Orbit.