The Nite-Ize kit is available at Wal-Mart for about $5. You remove the old bulb & reflector, then drop in the new three-LED assembly. Had mine changed over in all of two minutes (I think it took longer to get into the packaging).

Here's a link to the Nite Ize Mini-Mag LED: Nite Ize Mini-Mag LED

That LED setup on Candlepower Forums sure looks pretty bright!