Having found myself to be quite jelous of my friend who has just bought himself a Lupine Betty and a couple of my other mates who have got lights from the very slick U.S.E. Exposure range I deceided that I wanted a nice bright light but was not willing to pay the £300-£600 of a Betty or Exposure light.The obvious answer was to make one from scratch as the Exposure Race Maxx costs £230 and has two Seoul Semiconductor P4 LEDs which on their own cost approximatle £6 each.
After much surfing I found two designs. One a very nice solution involves modifying a maglite and another by making lights out of copper pipe end caps. I choose to make a copy of one of these http://bikeled.org/