I just use the built in charts of Comsec and Etrade....
One of the best things to do is read posts from people like Robbbbbb and watch his videos on Youtube (Trade the Trade)...
Fib Lines, Trends, Channels, MACD etc its worthwhile understanding this stuff.
It doesn't tell the future, but can help with some of your trading decisions..... like HTX failing to break 18c for example, and what might happen when it does.
HTX Price at posting:
17.5¢ Sentiment: Buy Disclosure: Held