Hi Chris
See a review of this camera in the July/Aug edition of Australian Sky & Telescope - should be some left in newsagents.
http://www.astmag.com.au/Current_Table_Of_Contents.htm
Test Report
Enhances Viewing and Imaging with the GSTAR-EX camera
This new camera brings ease-of-use to imaging the sky
By Steve Quirk
Cheers
Eric