For that beam, an XM-L and aspheric lens should work quite well and should fit your head nicely. An HID can be focused tighter than an LED typically, because the emitting area is smaller, but I just tested my XM-L and Ahorton 28mm aspheric last night, and got a beam 9" wide at 61". Anything much tighter than that is going to look more like a lightsaber than a light
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The front of the Ahorton aspheric (don't get anything but Ahorton's unless you need a different diameter) will be about 0.9" from the top of the LED dome for tightest focus. Move it closer for wider focus - 0.3" closer gets you a beam about 47" wide at 61", and the lens is nearly touching the LED. The lens location needs to be pretty accurate for best focus, so make sure you have the ability to tweak it. Also, the aspheric will need to be in air on both sides, so you need an additional lens (a flat plate is good) in front of it.
We've gotten to the point where you get more light out of a good 10W LED than a 10W HID, but the CRI isn't as good and heatsinking requires more thought. If you are doing photography and need the best colors, you might want a different solution, but it's hard to beat 1 LED, 1 lens, 1 driver for simplicity or to beat an XM-L for efficiency.