First of all ,thanks for reading this topic

I'm thinking to apply for Singapore PR on Nov/Dec as I feel that I really want to stay here after more than 2 years living here. Would you pls advise if the time for my PR application is right or should I wait until I have paid income tax for 3 years?
My profile:
+ Male, Vietnamese, 30 years old, bachelor degree in Computer Engineering - my spouse (on DP) is Vietnamese and Australia PR (not sure this helps or not ..

+ Working as a Network Engineer - Oil and Gas Company - P2 EP - annual income >100K
+ In 2009, I worked for 10 months in Singapore and resigned, left due to family reason. Paid 1st income tax.
+ Came back on September 2011 until now. Paid 2nd income tax on June 2012.
Thanks for your advise in advanced.
Regards.