ActionScript 3 - Advanced Particle Systems

[TheMichael]

I'm looking to better understand larger sets of particles generated in flash via AS3. I have extensive experience generating particle systems via traditional means, which will easily allow for 5000-10000 particles ( as MovieClips for example ).

I am looking to do something in the 500,000-1mil range without notable performance hits.

Example: http://www.youtube.com/watch?v=zcN2mYKdJ1o

Anyone have any leads?

Thanks,

Michael