Bob,
I saw those, I don't believe they have IR LED's. With out the built in IR, I would rather use the small box camera.
My concern with the ones I was looking at is there is no way to tell how good the image would be with moving objects. I searched youtube but couldn't find any examples that are similar to my environment. In the end I want good facial images of anyone walking up my driveway. It would be nice to tell exactly what cars are going up and down the street during the day and night. It would be better to get license plates day and night. My cameras are close to getting a good images at night but the person has to pause for just a moment or else it is blurred. I had one of the four led IR lights from ebay (the small round one), but it died, or melted and never really helped.
Anyway, I was hoping someone might have a IP camera with the IXM291 chip that could share their results.
Chris