I have a Lupine Piko 3, although I do not believe the Piko 3 is available now. They have other models. It is very bright, throws a very nice beam, is small and lasts a long time. If I ever have to replace it, I will go with another Lupine. I've had it for three years now and it still works well. Lupine Lighting Systems - Bike- and Helmetlights

For the rear, I have a Busch & Muller mounted on the rack: Discount Busch & Muller 4D Toplight Taillights, TheTouringStore.com

I also use a Superflash on the seatpost.