Great article Dennis
Now - as an adjunct to this, go and do yourselves a favour peoples, and buy or read a book written by a fellow club member of the Macarthur Astronomical Society in Sydney, Bob Bee, called "Heavens Above - A binocular guide to the southern skies". A very good publication for we SCP'ers.
http://home.st.net.au/~dunn/heavensabove/