vob,
Once again, nice review.
In response to your post, I think that the Crelant CH10 is a good deal for a head-lamp.
It can be had for less than $25 with a NW option.
It has a nice combination of flood and throw.
Doesn't over tax the battery even on high, so it gets decent runtimes. It's max is 460 lumens with an XML2 led.
It has two programmable modes and a hidden blinky.
It is comfortable to wear, and runs an 18650.