Hey guys,
I trade using Commsec because I too, found it convenient as I used to do all my primary banking with them. Yes, the ASX brokerage isn't the cheapest with $10 per trade for parcels $1000 or less, $19.95 per trade for parcels between $1000 and $10,000, and 29.95 per trade for parcels greater than $10,000. Plus, all conditional orders are free. I'm a university student so I am extremely under capitalized from a trading point of view. For me, it is a trade off between parcel size and brokerage costs as a % of parcel size combined with sound risk management. It may not be the most ideal way to trade, but for now, I make it work.