i needed a glowing light effect for my other project i`m doing right now, http://blenderartists.org/forum/showthread.php?t=195616
and i looked at this Tutorial for the Light sabre Blade, http://blenderartists.org/forum/showthread?t=62611
it does also work in 2.5 just need to play around with the light/halo properties.
so yes, once you do start a light sabre blade, you gotta finish the whole thing eh?
it was just an exercise remember, but critique is always welcome.