Hi there

I'm very green myself and cannot help with your specific question but I can give you some info on one of the areas you are looking to buy in.
I am from Girrawheen in Perth, the next suburb from Balga, and know the area very well.
I would do a lot of research before buying there as I believe any capital growth will be very slow.
Please check it out, don't take my word, but a word of warning.

Cheers