definately after effects. or check out videocopilot.et there's an after effect preset on there that does it all for you. drop it over your footage in the right place, keyframe it and it's done. you can change the colour, weight of the saber, motion blur of the movement, etc. its great!

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Russ

Dutch Films

Sony VX2100E | RODE VideoMic | Adobe Premiere Pro CS3. www.russthedutch.net