belldirect must have cash in the bank like etrade, i hear commsec is different? how so? are you saying you can buy today and pay tomorrow (T+1) ?
belldirect is perfect for those cheap trades mate, just the conditional orders aren't as advanced as etrade although conditional orders are more expensive than $15. They offer a 2 or 3 second garantee, the only gripe i have is that when the market is closed the orders go in the queue for the next morning or the pre-open period. On etrade if i place an order after close it usually goes in sometime in the adjust period that night.
I think you'll find bellsirect fills your requirements, also its free to set up and free to pull-out so you can try it without any strings attached.