Check out a space scene created in After Effects with Element 3D.
Video Copilot - Pixel Screen Experiment
Video Copilot are offering a free After Effects project that simulates a cool LCD pixel effect.
Video Copilot - Sci-Fi Weapons Experiment
Andrew Kramer demonstrates several types of sci-fi weapon firing techniques in this fun and instructive video.
Video Copilot - Simulated Scopes Tutorial
Video Copilot have released a tutorial on creating simulated scopes in After Effects.