you need to ensure what you are classified as, trader or investor,
trader is when it is your main source of income and then CGT generally wont apply. Company is to protect you from business and cap profits at a tax rate of 30%.
i find it best to have a family trust and a hybrid trust as you then control everything and own nothing,, plus the added value of who get what when you die as this doesnt affect your will and no one can have a go at the trusts usually.
try Bell partners in sydney, no problem with interstate. He is a CA, they are the better qualified accountants
