An in-depth tutorial by Ken Lawton (Durbnpoisn) explaining how to do some basic and advanced cloning techniques in After Effects.
Here's a very nice tutorial by PixelMagic showing you how to create Episode II-like force-lightning in After Effects.
DIGITAL SHOT STABILIZATION
A straightforward guide to shot stabilization using After Effects' Motion Tracker/Stabilizer by Stephen Schleicher. (fairly extensive shot stabilization using this relative method was used in Ryan vs. Dorkman)
THEFORCE.NET'S FAN FILMS TUTORIAL ARCHIVE
Tons of tutorials on everything you could possibly want to know about in regards to making a Star Wars fan film.