I currently run the niterider trinewt and love it. A few others in the club run the same light, and I am sure those guys will chime in. My sample pool is rather small as this is the one and only light I have owned however, I have borrowed others ranging from Princeton Tecs to the Blackburns...I would have to say I am most impressed with the trinewt. Like you, I would like the mininewt for my helmet...

...just my $.02

good luck and as always, if you want a trial run, let me know!