Actually viennalager - if you have a Cash Management account with CommSec you can trade what's called "Internet Prefered*", then the costs are thus -
$19.95 up to $10,000 transaction value $29.95 (up to $25,000) 0.12% (above $25,000)
*To be eligible for Internet Preferred trading, you must be CHESS sponsored by CommSec and settle your trades through a CommSec Cash Account, CDIA or a CommSec or Colonial Margin Loan.
They will allow you to trade on your profit however, but if you just want to take the profit from the sale of your holding then the funds won't show in your account for a further 3 days after your trade - i.e. "T+3", before the funds are in your account!