G'day irikanji
I use NAB National On Line Trading. I find it pretty good. Trades under $25 000.00 are $29.95 in and the same out.
Rule No 1
DO NOT invest money you cannot afford to loose.
Ruke No 2
Have a goal ie 5% return, 10% etc
Rule No 3
Buy Quality shares
Rule No 4
Do your own research and get to know a stock or a sector. DO NOT listen to your mates especially the ones down the pub!!!
There are very good buys at the moment but DO NOT margin lend at the moment it is far too volatile.
cheers
inhlanzi