I was experimenting with some interesting energy fields and I discovered a fun combination of effects. I used the standard fractal noise effect to create a basic turbulent map and then applied a Find Edges effect on top. I added some color correction and a glow to give it more punch and even animated the evolution settings. Feel free to play around with the fractal noise settings with the Find Edges effect applied and see what other interesting looks you can discover.
The project file is only cs5 because I don’t have CS4 on my laptop right now but I took a screen shot of the settings so that should help.