I'd be posting this question in the Yahoo Group "VideoAstro". The members own a wide variety of Video Astro Cams and you can compare images from different cameras in their Photo Gallery.
For myself personally, I like the Gstar because the shorter integration time means I can image successfully using an Alt Azi mount.
Cooling would be nice, but dark frames remove any hot pixels.
The price is right and the back up support through both the Gstar Group and MyAstroShop is excellent.
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