On the 3D maglite front, there is a new LED insert, the TerraLUX MiniStar5 SSC P4 TLE-6E, available at batteryjunction.com (
http://www.batteryjunction.com/tle-6k2.html). You can see comparison beams here:
http://candlepowerforums.com/vb/showthread.php?t=158938While it's a bit pricey ($26.95) compared to a stock mag, if you use the 3D frequently (as do I) the battery use alone in a years time will save you the amount you pay on the bulb...plus you get more light and for longer periods of time. I'm happy with my units.
...now I await a similar effort for minimags!
BTW, for small lights, the first Crees have hit the shores...you'll see many more very soon.