The SparkLAN CAS-673W is a good daylight, indoor IP based camera. We were impressed with the ease of setup, image quality (in daylight or better), motion detection and its speed of movement. Unfortunately we ran into issues using the RTSP function and had a terrible experience with low light imagery.
The price of the CAS-673W is 1,055 HKD which equals about $136 USD. The camera currently is not available in the U.S. that we could find, but is available in the EU and Asia.
In all, the CAS-673W was a mixed bag for us. I would have liked to see better low light performance and an easier method of enabling and working with 3GPP and RTSP. I cannot truly recommend this to someone looking for a good multi-purpose IP camera, but I can say that if you need something for a well-lighted area and excellent motion detection is a must, then this might be a good fit for you.