Thanks for the reply and the fact that I now know I have a lot to learn.
Well I don't want to spend too much, say a few hundred dollars to begin. I would prefer a CCD rather than a DSLR. Being linked up to a computer and the processing I know is involved with a CCD doesn't work me.
But having a second guide chip sounds a bit too pricey for a beginner. So some other cheaper method for guiding would help.
The sky glow is not too bad where I am in the suburbs, but is still there.
Thanks
Jonathan