Think longer term for a moment: what are you going to do with your tax liabilities when you do start investing/trading? Are you just going to keep the money in the trading account and make a mental note about how much you need to keep aside to cover your capital gains or are you going to withdraw the money for tax and dump it somewhere more safe?
I've taken the latter option and intend to run through a monthly process of calculating my tax liabilities based on any capital gains in the previous month, withdraw that money and dump it in ING accounts (I bank with ANZ and have all my accounts with them - I do it purely so as I can see all my accounts (except the ING unfrotunately) on one screen, I hate having multiple accounts across multiple banks).
Consider what macca said about St George - if you operate everyday accounts with them, consider opening a high-interest saver with them, you can dump your savings now, and use it for other purposes like what I'm going to do in the long run.
on BankWest: if you have an every day transaction account with them and you link it to one of their TeleNet savers, you can instantly transfer funds from TeleNet into everyday transaction account then withdraw them. So you could effectively get everything paid into the TeleNet like Salary, link it to trading accounts and just transfer funds out as you need them thus maximising your interest earning potential - and at 7.0%, you're laughing.
I used to do this, but BankWest have absolutely sweet F.A. exposure in Victoria and having a branch just around the corner is extremely handy sometimes.
$0.02