Hi Huey.
Sorry, but you can't rollover the CG to your super to achieve a lower tax rate on the CG.
You might still contribute some/all of the proceeds to your super, subject to super rules, but you will still be liable to Personal Income tax at your Marginal Tax Rate on the assessed gain.
A Small Business can rollover a CG on an active asset to a super fund, and get CGT relief, but even this does not extend to Investment Properties.
If you have a Capital Loss carried forward from previous years, or even if you have some dud shares (or similar) that would incurr a CL if sold, you might consider selling them in the same financial year, so offest against the CG.
But, you should always check with your own Tax Adviser/Accountant.
Geekay