Go onto flea bay and type in P7, I got a similar torch off there about three weeks ago. It has the CREE P7 LED in it and was from an English supplier so was delivered within 2 days. Cost £60 including two batteries and a charger…
It's brighter than my Hope HID and with two batteries runs for longer.
Word of warning – don't order a multifunction one as my mate has a couple and on rocky decents they keep switching onto strobe mode which is a nightmare!
Quick and easy mount option – get one of those thick elastic bands that they "give out" at the local swimming baths and simly loop it roudn the torch and through your helmet – perfect fitting and flexible enough if you fall off and give it a crack.