Genie Effect and All

Hi All,

I was reading this book called Hacking MAC OS X Tiger and they suggested few tricks like creating an effect other Genie. This can be created by using the following commands,

defaults write com.apple.com.Dock mineffect suck

killall Dock

You would then have the mine effect. I was wondering if there were other effects and is it possible to create any of our own?

Thanks in advance

I'd use a tool such as Tinkertool to activate some of the hidden settings in Tiger.
AFAIK it isn't possible to (easily) create other effects.