Thanks guys, this is the kind of info I was looking for.
I'll check out astrosnap. It's easy find out whats out there - its another to find out peoples experience and usefuleness of whats there.
I suppose the obvious question you need to ask yourself is specifically what do you want the software to do, planetary capture/processing, long exposure etc. With a better answer to that question I think you would be able to make a better decision on which software is right for you.
  