I echo all the above - if you can save up a little more for a HID it's worth every penny.
I've made an investment in my 21w Salvo, which although expensive, will be the last torch I'll ever need to buy.
My salvo is already a few years old and still works just as well as it did when I first got it.
I have a couple of LED backup torches, including an utterly brilliant miniature Mares torch/lightstick which is brilliant as a backup light as it's only 2 inches long. But I still don't like the light from LED - as Rob says, it doesn't seem to punch through the gloom as much as a HID does.
It's a bit like putting your lights on full beam when it's really foggy - it just seems to light up the fog and not pierce through it.