Hey Rod, thanks.
Yes, you might stumble across one of my other images here - NGC235:
http://www.iceinspace.com.au/forum/s...d.php?t=113081
I tend to use ISO800 for around 1-2 min, ISO 1600 for the 30 to 60 sec. Anything more and the brighter stars can get a bit too bloated for my liking. So, I went to ISO 400 for over 2 min (well, really 5 min+ - I'm not going to bother with anything between 2 & 5 I think. Just like I'll jump from 5 to 10 min).