BBC1HD "Cubes" trail
Created using Aftereffects CS5 along with a plethora of third-party plugins, most notably:
VC Optical Flares
Magic Bullet Looks
The 3D Cube particles were actually 2D sprites moved in a 3D space (by Form and Particular). The 2D source sequence (a looping, rotating cube) was generated in NewTek Lightwave 10.
There are numerous other versions of this Trail for other high profile BBC programmes. All have been built at Digital Distortion.