Hi Finch, "If push comes to shove and your cash is in a cash account in say etrade /comsec or westpac will these be guaranteed by the bank?"
Not sure how these work. But with NAB Online Trading (NOLT) you can choose to have a standard NAB Cash Management Account (which I assume is covered by the govt bank guarantee) and it is linked to the NOLT system with money transferred in and out according to your trades = what I'd call an "indirect" link(?). Do the others have cash accounts directly owned by the trading platform?