Check out a space scene created in After Effects with Element 3D.
Creating a Meteor VFX Shot in After Effects
Digital-Tutors have released a free tutorial on how to create a meteor VFX shot in After Effects.
Video Copilot - Sci-Fi Weapons Experiment
Andrew Kramer demonstrates several types of sci-fi weapon firing techniques in this fun and instructive video.
LightWave 11.5 After Effects Interchange
Cody Burke explains the fundamental techniques on using After Effects Interchange tools with LightWave 11.5.