Rayray, if you're looking for something that will run on a Mac...

Rayray, if you're looking for something that will run on a Mac you might consider looking into the Spark trading platform from Iguana2. It comes in Windows and Mac flavours and is VASTLY superior to Westpac Trader Pro. At $200/month it's not cheap, but that $200 is peanuts once you see what it can do. I guess it comes down to your own personal trading style. It's probably more suited to day traders and short term traders, but if that's your bag then maybe give it a go. They have a 14 day free trial.

(Disclaimer: Yes I do use Spark myself, and NO I'm not affiliated in any way with the company)