
Mark.
I'm sure we have a few other SA members here. Hopefully they will see your thread and connect with you.
I use The Sky 6 and Starry Night Pro and they take care of most of my needs. Of course there is always Cartes as already mentioned. While its not free and there are more detailed atlases out there, Will Tirions The Southern Sky Guide is popular. Probably because the names are up the right way for a change.