hey,
I have a Jet Lites handlebar mounted headlight. It's damn bright. Out before sunrise, I've had cars (that would probably have pulled into the road in front of me) stop with me a good 100 yards away. They must've thought I was a motorcycle or something. Jet Lites customer support is good too. If you call, you talk directly to Jim, the owner.
For a tail light, I just bought a Cat-eye TL-LD1000 today. Thing looks like a red disco ball when the lights are blinking full force. When I turned the thing on in the bike shop, I was seeing spots after turning if off, like someone just took a flash picture... pretty sweet!
later.