Thanks JJJ, so far I'm really happy with it. Still a lot to learn, with my limited knowledge of the camera's capabilities & LRGB processing, the images I have taken so far are 10 fold better than my Canon 550D

And I have not even use it at a dark site yet. All these images up to date were taken from my Sydney suburban backyard.
It cools down really quickly, the lowest I managed to bring it down so far is -27C in this summer temp.
The OAG focus well for the Orion SSAG, I read on various forums that users were having problem focusing the SSAG, but I didnt have any of that issue.
The only drawback that I have is the long download time, 20-23 secs, which makes focusing & framing the target a long and painful process.
Victor.