If you're just starting off in the wealth building/accumulation game I think you'd be financially better off in the long-term by buying a few IP's initially at maximum serviceable LVR's, and when interest rates bottom out, lock them in for 5+ years, making your IP portfolio close to neutrally geared.
Then stop buying IP's as you could get burnt holding a lot of expensive debt as variable and fixed interest rates start to rise again, and quite possibly over and above rental increases (with the exception to stopping being if your JOB/business income/serviceability level is still high and expected to rise significantly in the coming years).
And instead, at this time, now buy your first modest PPOR and with modest borrowings (relative to your income/serviceability level), but with a small cash deposit and on a variable interest only rate loan, and start paying it down into a 100% offset account, add value to the property whilst you're living there, and let leverage and compounding growth do its trick.
At the end of the next growth cycle you'll be close to having a debt free/low LVR PPOR that's gone up in value a few hundred K, and which you can now (if you want to) sell CGT free and upgrade to an even bigger, "dream PPOR"...(+/- some more modest borrowings relative to your income/serviceability level).
You'll also have those IP's in the background ticking away and increasing your real net worth...and if the cycle has come full circle again you can now use the increased equity in these IP's as deposits on more IP's when interest rates are low again, which you can again fix for 5+ years, and make the portfolio close to neutrally geared once again.
You keep doing this until you've accumulated "enough".
It's a time in the market + timing the market +/- value adding along the way strategy.
(And purely based on using residential property as a highly leverageable growth asset class.)
A very simple process really, but a bit hard to figure out when to stop!
You then need to modify your strategy to generate a higher passive income.
This is not so simple though!
It does all depend on where we are in the interest rate/property cycle when you first start investing, and how much cash savings/equity you have to begin with, as well as your JOB/business income and the growth you get on your first few IP's...
Here's some old threads that might be relevant
:
http://www.somersoft.com/forums/showthread.php?t=38260
http://www.somersoft.com/forums/showthread.php?t=38186